About This

• Nutrient-Enriched Freshwater Aquarium Substrate with Pumice Stone for Plant Health – UNS fish tank gravel rocks infused with slow-releasing nitrogen, potassium, phosphorus, and trace elements, Controbase continuously nourishes live aquatic plants and regulates excess nutrients.
• Optimal Base Layer Aquarium Substrate for Live Plants and Aquascaping Stability – Designed to be placed beneath Aqua Soil, Controbase prevents excessive aquarium soil disturbance, improves substrate stability, and supports plant roots for long-term growth.
• Enhances Water Flow and Beneficial Bacteria Growth – The aquatic plant substrate aquarium gravel 6-8mm porous granules promote oxygen exchange and water circulation, enriching aqua soil for planted aquariums, and creating a thriving environment for root-feeding plants and biological filtration.
• Ideal aquarium soil for a freshwater tank. Designed exclusively for freshwater planted aquariums. Controbase layer of nutrient-rich substrate for aquarium plants provides an alternative to a cap layer of gravel or aquarium sand for freshwater tanks capping an aquasoil, preventing from clouding the water, and providing root support for plants. Not suitable for saltwater environments.
• Pre-Bagged Substrate Mesh Packs for Custom Aquascaping Layouts – Controbase substrate for aquariums comes in 0.5L mesh filter bags for easy substrate barrier placement, stacking, and slope creation, allowing the best precise control over the soil for aquascaping designs.
• Compatible with UNS Controsoil and Controsand – Works seamlessly under UNS Controsoil - aquarium soil for nutrient-demanding plants or with UNS Controsand - sand for fish tank balanced, structured aquascape.