{"title":"ADA Kumu Range","description":"\u003ch2 style=\"padding: 0px 30px 0px 30px;\"\u003e\u003cstrong\u003eADA KUMU HARDSCAPE MATERIALS\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp style=\"padding: 30px;\"\u003eShop the ADA KUMU collection, featuring premium hardscape detailing materials for Nature Aquariums and aquascaping projects. The range includes carefully selected small stones, decorative gravels, natural sands and miniature Horn wood pieces, perfect for adding realistic detail, texture and depth to your aquascape. Ideal for recreating natural landscapes, filling gaps between larger hardscape elements and refining intricate layouts, ADA KUMU materials help achieve a more authentic and professional finish. Designed to complement ADA's renowned aquascaping philosophy, these high-quality natural materials are suitable for both beginner and advanced aquascapers looking to elevate their planted aquarium designs. Available for UK delivery from Horizon Aquatics.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","products":[{"product_id":"ada-kumu-ryuoh-stone","title":"ADA KUMU Ryuoh Stone","description":"\u003ch1\u003e\u003cstrong\u003eADA KUMU Ryuoh Stone ST-01\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp class=\"price\"\u003e\u003cstrong\u003e300g - 30~80mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eADA KUMU Ryuoh Stone\u003c\/strong\u003e is a striking hardscape material from the KUMU Layout Series, chosen for its cool tonal character and sharp, sculptural form. Each piece features dramatic ridges and pointed contours that resemble weathered reef formations, adding depth, texture and movement to your aquascape.\u003c\/p\u003e\n\u003cp\u003eSized between 30–80mm, Ryuoh Stone is ideal for detailing — perfect for refining transitions between larger stones, building elevation within a layout, or adding intricate foreground and midground character. Its angular structure creates natural shadowing and layered perspective, helping to produce a more dynamic and realistic underwater scene.\u003c\/p\u003e\n\u003cp\u003eBeyond aesthetics, Ryuoh Stone also provides practical benefits. Its crevices and sharp profiles offer natural shelter for shrimp and small fish, while contributing to a more authentic, nature-inspired environment.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eWater Parameters\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eRyuoh Stone has a high influence on total hardness (TH) and a moderate influence on pH. In most aquariums this can be easily managed with regular maintenance and water changes, but it’s worth considering if you are keeping soft-water species or running specialised aquascapes.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eVersatile by Design\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eAlthough perfectly suited to Nature Aquarium layouts, the KUMU series is equally at home in paludariums, glass display cases, and smaller accent compositions. Whether used as a primary textural feature or as supporting detail to larger hardscape stones, Ryuoh Stone brings refinement and structure to any layout.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"ADA","offers":[{"title":"Default Title","offer_id":57338306625910,"sku":"106-701","price":11.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0266\/5843\/9225\/files\/ADA-KUMU-Ryuoh-Stone_be1d8fd6-4740-41aa-a0a5-59de74656f86.jpg?v=1772197531"},{"product_id":"ada-kumu-ohko-stone","title":"ADA KUMU Ohko Stone","description":"\u003ch1\u003e\u003cstrong\u003eADA KUMU Ohko Stone ST-02\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp class=\"price\"\u003e\u003cstrong\u003e 250g - 30~80mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe ADA KUMU Ohko Stone is a classic aquascaping material from the KUMU Layout Series, valued for its warm, earthy tones and highly textured surface. Often recognised for its intricate holes and weathered contours, this stone adds immediate character and natural complexity to any aquascape.\u003c\/p\u003e\n\u003cp\u003eWith pieces ranging from 30–80mm, Ohko Stone is perfect for adding detail and refinement to your layout. It works beautifully as a transitional material between larger feature stones, for building layered foreground interest, or for enhancing midground depth. Its irregular structure creates natural shadowing and contrast, helping to produce a more organic and established look within the aquarium.\u003c\/p\u003e\n\u003cp\u003eThe porous surface also offers functional benefits. The many crevices and cavities provide ideal grazing areas for shrimp and small fish, while contributing to a more biologically active hardscape.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eWater Parameters\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eKUMU Ohko Stone has minimal impact on water chemistry compared to many decorative rocks, making it a dependable choice for a wide range of aquariums. While minor changes in hardness can occur, it is generally well suited to both planted tanks and community setups when regular maintenance is maintained.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eVersatile by Design\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eAlthough most commonly used in Nature Aquarium layouts, Ohko Stone is equally at home in paludariums, terrariums, and smaller decorative compositions. Whether used as a supporting texture or as a focal detail element, it brings warmth and natural structure to your aquascape.\u003c\/p\u003e","brand":"ADA","offers":[{"title":"Default Title","offer_id":57338894057846,"sku":"106-702","price":11.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0266\/5843\/9225\/files\/ADA-KUMU-ohko-stone_920f7cca-6516-4564-8290-0eecc021ab95.jpg?v=1772197530"},{"product_id":"ada-kumu-yamaya-stone","title":"ADA KUMU Yamaya Stone","description":"\u003ch1\u003e\u003cstrong\u003eADA KUMU Yamaya Stone ST-03\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp class=\"price\"\u003e\u003cstrong\u003e300g - 30~80mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe ADA KUMU Yamaya Stone is a dramatic and characterful hardscape material from the KUMU Layout Series, selected for its deep, cool-toned colour and sharply defined structure. With its dark bluish-grey appearance and angular form, Yamaya Stone introduces contrast, weight and bold definition to planted aquarium layouts.\u003c\/p\u003e\n\u003cp\u003eEach piece, sized between 30–80mm, is ideal for refining hardscape compositions or adding detail around larger structural stones. Its jagged edges and fractured texture create strong shadows and depth within a layout, making it particularly effective for mountain-style aquascapes or high-contrast Nature Aquarium designs.\u003c\/p\u003e\n\u003cp\u003eThe pronounced structure also provides natural crevices and shaded areas, offering shelter and grazing surfaces for shrimp and small fish while contributing to a more authentic underwater environment.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eWater Parameters\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eYamaya Stone has minimal impact on water chemistry, making it suitable for most planted aquariums and community systems. While all natural stones can cause minor variations, it is generally considered stable when used in a well-maintained setup.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eVersatile by Design\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eAlthough perfectly suited to Nature Aquarium layouts, Yamaya Stone also works beautifully in paludariums, terrariums and smaller decorative compositions. Whether used to enhance dramatic elevation or to introduce contrast within softer planting schemes, it brings structure and intensity to your aquascape.\u003c\/p\u003e","brand":"ADA","offers":[{"title":"Default Title","offer_id":57339450196342,"sku":"106-703","price":11.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0266\/5843\/9225\/files\/ADA-KUMU-yamaya-stone_6f0c3535-425d-49f5-a9fa-347634ac6bf5.jpg?v=1772197531"},{"product_id":"ada-kumu-lichen-stone","title":"ADA KUMU Lichen Stone","description":"\u003ch1\u003e\u003cstrong\u003eADA KUMU Lichen Stone ST-04\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003e400g – 30–80mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe ADA KUMU Lichen Stone is a distinctive hardscape material from the KUMU Layout Series, chosen for its natural weathered character and subtle surface variation. With its textured exterior and organic tonal shifts, this stone introduces a mature, timeworn aesthetic to planted aquarium layouts.\u003c\/p\u003e\n\u003cp\u003eEach 30–80mm piece is perfectly sized for enhancing detail within a scape — whether used to complement larger structural stones or to create intricate foreground and midground transitions. The irregular surface patterns and layered contours help produce depth and visual movement, making it especially effective in nature-inspired layouts and iwagumi-style compositions.\u003c\/p\u003e\n\u003cp\u003eIts varied texture provides excellent grip for mosses and epiphytic plants, allowing for seamless integration into planted designs. The natural creases and pockets also create microhabitats that shrimp and small fish instinctively utilise, contributing to a more immersive and biologically dynamic environment.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eWater Parameters\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eLichen Stone is generally stable in aquariums and has minimal influence on water chemistry. As with all natural stone, slight variations may occur, but it is widely suitable for planted tanks and community aquariums when used in a balanced system.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eVersatile by Nature\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eBeyond aquascaping, Lichen Stone works beautifully in terrariums and paludariums, where its aged appearance complements mosses and tropical planting schemes. Whether you’re building subtle elevation or adding textured contrast to softer layouts, this stone brings a refined, natural presence to any composition.\u003c\/p\u003e","brand":"ADA","offers":[{"title":"Default Title","offer_id":57366727885174,"sku":"106-704","price":13.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0266\/5843\/9225\/files\/ADA-KUMU-lichen-stone_22a4841d-7dcf-4e3b-8f59-1423ffcde600.jpg?v=1772197529"},{"product_id":"ada-kumu-jagure-stone","title":"ADA KUMU Jagure Stone","description":"\u003ch1\u003e\u003cstrong\u003eADA KUMU Jagure Stone ST-05\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003e400g – 30–80mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eADA KUMU Jagure Stone is a striking hardscape element from the KUMU Layout Series, prized for its rugged silhouette and dynamic surface character. Its bold texture and irregular edges create strong visual interest, making it an excellent choice for aquascapes that favour pronounced contrast and natural ruggedness.\u003c\/p\u003e\n\u003cp\u003eEach piece, ranging from 30–80mm, is ideal for building focal points within your layout or layering alongside larger stones like \u003cstrong\u003ehakkai stone\u003c\/strong\u003e to add complexity and dimension. The jagged, fractured appearance captures light and shadow beautifully, helping to define structure and movement within planted environments — especially suited to nature-style aquariums and dramatic hardscape designs.\u003c\/p\u003e\n\u003cp\u003eThe distinctive surface offers plenty of crevices and ledges perfect for anchoring mosses, ferns, and other epiphytic plants. These natural nooks also provide micro-habitats for shrimp and small fish, creating depth not only visually but ecologically.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eWater Parameters\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eJagure Stone has minimal effect on water chemistry, making it suitable for most planted aquariums and community setups. While natural stones can introduce slight variations, this material is generally considered stable when integrated into a well-maintained system.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eVersatile and Creative\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eBeyond traditional aquariums, Jagure Stone enhances paludariums and terrariums with its raw, textural presence. Whether you’re crafting bold elevation, layered rock formations, or intricate hardscape focal points, this stone brings energy and character to every composition.\u003c\/p\u003e","brand":"ADA","offers":[{"title":"Default Title","offer_id":57366744072566,"sku":"106-705","price":15.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0266\/5843\/9225\/files\/ADA-KUMU-Jagure-Stone.jpg?v=1772111075"},{"product_id":"ada-kumu-red-slate-stone","title":"ADA KUMU Red Slate Stone","description":"\u003ch1\u003e\u003cstrong\u003eADA KUMU Red Slate Stone ST-06\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003e300g – 30–80mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe ADA KUMU Red Slate Stone is a naturally elegant hardscape material from the KUMU Layout Series, appreciated for its warm clay-toned hues and layered texture. With its subtle reddish accents and slate-like structure, this stone brings a touch of warmth and sophistication to planted aquarium designs.\u003c\/p\u003e\n\u003cp\u003eEach piece, sized between 30–80mm, works beautifully as both a primary structural element and as a complementary accent to larger features. Its foliated surface and delicate stratification lend fine detail to hardscape compositions, helping to create soft transitions and visual harmony throughout your layout. The understated colour variation particularly enhances aquascapes with lush green planting, offering an inviting contrast that feels both natural and refined.\u003c\/p\u003e\n\u003cp\u003eThe gentle contours and surface grooves also provide ideal attachment points for mosses, epiphytic plants, and ferns, helping them flourish as they grow into the stone’s texture. These natural pockets create shaded zones and micro-habitats that aquarium inhabitants, especially shrimp and small fish, instinctively explore.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eWater Parameters\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eRed Slate Stone is generally stable and has minimal impact on water chemistry, making it suitable for most planted aquarium and community setups. While all natural stone may cause slight fluctuations, this material is widely used without major influence when incorporated into well-balanced systems.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eVersatile and Inspiring\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eWhether you’re building a scenic nature layout, a subtle centerpiece, or a detailed terrarium or paludarium composition, Red Slate Stone offers versatility and visual richness. Its warm tones and layered character elevate both bold and understated designs, delivering depth and natural appeal to every aquascape.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"ADA","offers":[{"title":"Default Title","offer_id":57366747316598,"sku":null,"price":11.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0266\/5843\/9225\/files\/ADA-KUMU-Red-Slate-Stone.jpg?v=1772111075"},{"product_id":"ada-kumu-buff-layer-stone","title":"ADA KUMU Buff Layer Stone","description":"\u003ch1\u003e\u003cstrong\u003eADA KUMU Buff Layer Stone ST-07\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003e300g – 30–80mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe ADA KUMU Buff Layer Stone is a naturally layered hardscape material from the KUMU Layout Series, selected for its warm buff tones and distinct sedimentary structure. With soft beige and light earthy hues running through each piece, it introduces warmth and subtle contrast to planted aquarium layouts.\u003c\/p\u003e\n\u003cp\u003eSized between 30–80mm, these pieces are ideal for refining detail within your hardscape or supporting larger structural stones. The natural banding and stratified texture make it particularly effective for creating slopes, terraces, and layered geological formations in Nature Aquarium designs. Its horizontal lines draw the eye and add a sense of direction and flow within the layout.\u003c\/p\u003e\n\u003cp\u003eThe textured surface provides excellent attachment points for mosses and epiphytes, while the natural creases and contours create shaded areas and grazing surfaces for shrimp and small fish. This helps enhance both the visual depth and biological function of your aquascape.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eWater Parameters\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eBuff Layer Stone may have a moderate effect on hardness and can slightly influence pH in some setups. As with all natural stone, minor variations are possible, but it can be used successfully in planted aquariums when balanced with regular maintenance and monitoring.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eVersatile by Design\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eBeyond aquascaping, Buff Layer Stone works beautifully in paludariums and terrariums, where its warm layered appearance complements mosses and tropical planting schemes. Whether used to build elevation or add subtle geological texture, it brings a refined, natural character to any composition.\u003cbr\u003e\u003c\/p\u003e","brand":"ADA","offers":[{"title":"Default Title","offer_id":57366752133494,"sku":"106-707","price":11.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0266\/5843\/9225\/files\/ADA-KUMU-Buff-Layer-Stone.jpg?v=1772111075"},{"product_id":"ada-kumu-red-lava-stone","title":"ADA KUMU Red Lava Stone","description":"\u003ch1\u003e\u003cstrong\u003eADA KUMU Red Lava Stone ST-08\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003e150g – 30–80mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe ADA KUMU Red Lava Stone is a rugged, natural hardscape material ideal for planted aquarium scapes, iwagumi layouts, terrariums and paludariums. Its rich rust-red hue and porous texture create striking contrast against lush green plants, making it a standout choice for aquascape rockwork that draws the eye. As a natural lava rock, it brings organic variation in colour and form that enhances depth and visual interest in natural aquarium designs.\u003c\/p\u003e\n\u003cp\u003eEach piece, sized between 30–80mm, works beautifully both as a structural anchor point and as a complement to larger stones in your hardscape. The textured surface and natural pits provide excellent real estate for mosses, ferns and epiphytic plants to attach and grow, helping integrate hardscape and planting for a cohesive aquascape. Small crevices also create micro-habitats for shrimp and small fish, adding ecological complexity to your aquarium environment.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eWater Parameters\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eRed Lava Stone is generally stable in planted aquariums, but like all natural stone it may contribute trace minerals to the water. It is suitable for most freshwater planted tanks and community setups when used with regular water maintenance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eVersatile by Design\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eBecause of its vivid colour and dynamic texture, this stone doesn’t just enhance aquarium hardscape — it also elevates terrarium and paludarium layouts. Whether you’re building a dramatic centrepiece or accenting softer plant zones, ADA KUMU Red Lava Stone brings natural warmth, depth and geological character to your aquatic and semi-aquatic designs.\u003c\/p\u003e","brand":"ADA","offers":[{"title":"Default Title","offer_id":57366754820470,"sku":"106-708","price":11.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0266\/5843\/9225\/files\/ADA-KUMU-Red-Lava-Stone.jpg?v=1772111075"},{"product_id":"ada-kumu-black-lava-stone","title":"ADA KUMU Black Lava Stone","description":"\u003ch1\u003e\u003cstrong\u003eADA KUMU Black Lava Stone ST-09\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003e150g – 30–80mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe ADA KUMU Black Lava Stone is a naturally dramatic hardscape material crafted for planted aquarium rockwork, nature aquarium layouts, terrariums and paludariums. Its deep charcoal-black colour and rugged, porous texture create bold contrast against vibrant plant growth, making it a standout aquascape stone for iwagumi and natural style designs. As an authentic lava rock, Black Lava Stone offers organic variation in shape and surface, enhancing depth, shadow and visual impact in planted setups.\u003c\/p\u003e\n\u003cp\u003eEach piece, sized between 30–80mm, is ideal for creating layered rock formations or accenting larger hardscape structures. The porous surface and natural cavities provide excellent attachment points for mosses, ferns and other epiphytic plants, helping integrate hardscape and planting with effortless realism. These nooks and crevices also serve as shelter and exploration zones for shrimp and small fish, contributing to a richer aquarium environment.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eWater Parameters\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eBlack Lava Stone is generally stable in freshwater planted tanks and has minimal impact on water chemistry. Like all natural stones, trace mineral contribution is possible, but it remains suitable for most planted aquariums and community systems with standard maintenance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eVersatile by Design\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eBeyond aquascaping, ADA KUMU Black Lava Stone enhances terrariums and paludariums with its dramatic aesthetic and textural presence. Whether used to build striking focal points or to contrast against softer plant backgrounds, this stone brings bold structure and natural character to any aquatic or semi-aquatic composition.\u003c\/p\u003e","brand":"ADA","offers":[{"title":"Default Title","offer_id":57366761963894,"sku":"106-709","price":11.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0266\/5843\/9225\/files\/ADA-KUMU-Black-Lava-Stone.jpg?v=1772111075"},{"product_id":"ada-kumu-flat-river-gravel-small","title":"ADA KUMU Flat River Gravel - Small","description":"\u003ch1\u003e\u003cstrong\u003eADA KUMU Flat River Gravel - Small\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eGR-01\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e250 ml - 5–10 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe ADA KUMU Flat River Gravel S is a natural hardscape gravel from the KUMU Layout Materials series, featuring smooth, flat stones in subtle earth tones. Its gentle colour palette and low‑profile shape make it an excellent choice for planted aquarium foregrounds, terrariums, and paludariums, where fine texture and natural flow are key to creating cohesive layouts.\u003c\/p\u003e\n\u003cp\u003eWith a size range of 6–10 mm, this gravel works perfectly for adding detail in the foreground or midground, defining pathways, and establishing gentle transitions between substrate zones and larger hardscape elements. The flat surfaces create calm visual planes that support both carpeting plants and driftwood accents while maintaining balance and scale within the design.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eWater Parameters\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eFlat River Gravel S is generally stable and has minimal impact on water chemistry, making it suitable for most freshwater planted aquariums and community setups. Minor mineral contributions are possible, but will not significantly affect water stability in a well‑maintained system.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eVersatile by Design\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eBeyond aquarium use, ADA KUMU Flat River Gravel S enhances terrarium and paludarium layouts with its natural texture and adaptable size. Whether used to accent hardscape transitions, define foreground texture, or create structured midground features, this gravel adds a subtle and nature‑inspired foundation to your composition.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"ADA","offers":[{"title":"Default Title","offer_id":57366778741110,"sku":"GR 01","price":8.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0266\/5843\/9225\/files\/ADA-KUMU-Flat-River-Gravel-S.jpg?v=1772197530"},{"product_id":"ada-kumu-flat-river-gravel","title":"ADA KUMU Flat River Gravel","description":"\u003ch1\u003e\u003cstrong\u003eADA KUMU Flat River Gravel GR-02\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003e250ml – 10–40mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe ADA KUMU Flat River Gravel is a premium natural hardscape material perfect for planted aquariums, aquascape foregrounds, terrariums, and paludariums. Its smooth, flat pebbles in soft earth tones add a natural riverbed aesthetic, enhancing depth, flow, and visual cohesion in nature-style layouts. The muted colours and organic shapes provide subtle contrast against vibrant plants, making it ideal for creating serene pathways and balanced hardscape compositions.\u003c\/p\u003e\n\u003cp\u003eSized 10–40mm, this gravel is excellent for midground features, gentle slopes, and filling gaps between larger stones. The flat, rounded surfaces allow for easy planting of mosses and small epiphytes while supporting water circulation at the substrate surface, encouraging healthy root growth in your planted setup.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eWater Parameters\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eFlat River Gravel is generally stable and has minimal impact on water chemistry, making it suitable for most planted aquariums, community tanks, and soft water systems. 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