Fluval Stratum contains a powerful mix of nutrients, minerals and trace elements exclusively available to plants, promoting healthy development, vigorous growth and vibrant colours Non compacting aquatic soil, lightweight, 3-5mm granule size optimised for plants with larger root systems Supports a neutral to slightly acidic pH, ideal for live plants as well as tropical fish and shrimp, commonly kept in planted aquariums Ideal alternative aquarium substrate for planted aquariums and those housing freshwater shrimp, providing newborns with a refuge from predators until they are large enough to emerge For use as a main substrate or bottom layer in planted aquariums with deep root networks