Fluval Plant & Shrimp Stratum Aquarium Planting Substrate, Brown, 4 kg

Promotes strong plant growth — roots penetrate easily and spread throughout the substrate to maintain important nutrients The porous structure allows rapid colonization of beneficial nitrifying bacteria Supports a neutral to slightly acidic pH — ideal for most plants, tropical fish and shrimp normally kept in planted aquariums Provides newborn shrimp protection from predators until they are large enough to pop up Does not discolour water and helps control organic discoloration when natural driftwood is present Note: Please note that air bubbles released when first immersed are completely normal and you don't have to worry. The bubbles are normal air released from the porous surface of the product. Only gas bubbles that have accumulated over time due to decomposition are worrying due to the nature of the gas.