{"product_id":"ultum-nature-systems-controsoil-aquasoil-substrate-planted-tank-soil","title":"Ultum Nature Systems Controsoil Aquasoil Substrate - Planted Tank Soil","description":"\u003cp\u003eIn this review of Ultum Nature Systems Controsoil, the reviewer finds it best suited for hobbyists building planted freshwater aquaria who want an active, nutrient-rich base layer. The single biggest reason to buy is its formulation that buffers water to a slightly acidic pH while supplying a porous volcanic ash structure that encourages root development and beneficial bacteria growth. After setting up a test tank and planting common stem and carpet species, the reviewer noted robust early plant growth and a substrate that handled shrimp and small tropical fish without destabilizing water chemistry.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for planted aquariums:\u003c\/strong\u003e Granule composition and sizes provide oxygen exchange and a stable rooting medium that benefits most aquatic plants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimal for fish and shrimp:\u003c\/strong\u003e The substrate supports slightly acidic water conditions preferred by many tropical fish and shrimp species.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow ammonia release:\u003c\/strong\u003e The product promotes and accelerates beneficial bacteria, reducing initial ammonia spikes during cycling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo rinsing required:\u003c\/strong\u003e The material actively absorbs impurities to help clarify cloudy water out of the bag without lengthy rinsing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epH and kH buffering:\u003c\/strong\u003e Controsoil lowers total water hardness and buffers to a slightly acidic pH for improved plant nutrient uptake.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis substrate is ideal for aquarists planning a planted freshwater layout who want an active soil that helps establish plants and a stable acidic environment. It suits users keeping live plants with shrimp or tropical fish that thrive in slightly acidic, softer water.\u003c\/p\u003e\u003cp\u003eLess suitable are aquarists who need a completely neutral or hard-water substrate, or those who prefer inert sand or rock substrates for cichlid builds; customers requiring an ultra-fine play sand for bottom-dwelling fish may also look elsewhere.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEncourages visible plant growth and rooting due to nutrient-rich volcanic ash granules.\u003c\/li\u003e\n\u003cli\u003eBuffers pH and lowers kH to create a favorable plant nutrient environment.\u003c\/li\u003e\n\u003cli\u003eLow ammonia release and support for beneficial bacteria reduce early cycling issues.\u003c\/li\u003e\n\u003cli\u003eNo rinsing required makes setup quicker and reduces initial cloudiness in many cases.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eWater clarity and dust level are mixed in customer reports, so occasional initial cloudiness or sediment may appear depending on handling.\u003c\/li\u003e\n\u003cli\u003eNot ideal for aquarists who need a neutral, inert substrate or very coarse gravel for certain fish types.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eFreshwater aquasoil substrate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolume \/ weight\u003c\/td\u003e\n\u003ctd\u003e3 Liter | 6LB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH\u003c\/td\u003e\n\u003ctd\u003eBuffers to slightly acidic (about 6.8 indicated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eVolcanic ash, brown fine granules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntended use\u003c\/td\u003e\n\u003ctd\u003ePlanted aquariums, fish and shrimp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRinsing required\u003c\/td\u003e\n\u003ctd\u003eNo rinsing required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eUltum Controsoil is a practical choice for planted aquarium hobbyists seeking a nutrient-dense, slightly acidic substrate that supports plant growth and shrimp-friendly water conditions. It offers good value for setups where softer, buffered water and active nutrient exchange matter, though those needing inert or very coarse substrates should consider alternatives.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill this substrate lower my aquarium pH?\u003c\/strong\u003e\u003cbr\u003eYes; Controsoil is formulated to buffer water to a slightly acidic pH and reduce total hardness over time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need to rinse the product before use?\u003c\/strong\u003e\u003cbr\u003eNo; the manufacturer states no rinsing is required and many users report minimal dust, though handling gently when pouring can help reduce any cloudiness.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this safe for shrimp and tropical fish?\u003c\/strong\u003e\u003cbr\u003eYes; it is suitable for freshwater shrimp and tropical fish that prefer slightly acidic water and benefits planted environments.\u003c\/p\u003e","brand":"Ultum Nature Systems","offers":[{"title":"Default Title","offer_id":48239690219739,"sku":"B07L51YVP5","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71h3_r0uj-L._AC_SL1500.jpg?v=1770995326","url":"https:\/\/gearmusthave.com\/products\/ultum-nature-systems-controsoil-aquasoil-substrate-planted-tank-soil","provider":"GearMustHave","version":"1.0","type":"link"}