JBL ProScape ShrimpSoil Brown is a ground substrate in brown coloure without nutrients for all shrimp aquariums. JBL ProScape ShrimpSoil provides a slightly acidic pH value in the aquarium, as found in many tropical waters. Proscapers often use special substrates (soils), which have been especially adapted to their requirements. Unlikenormalsubstrates (sand, gravel), soils are not water-neutral, but have a softening effect. They make the water softer and acidify the aquarium just enough to slide the pH value slightly into the acidic range.JBL ProScape ShrimpSoil Brown+ Creates optimal water values (slightly acidic & low KH value) for aquatic plants.+ With its softening effect the substrate is ideal for the keeping of shrimps+ The granulation of the soil ensures an optimal supply and circulation of oxygen inside the ground.+ coloure: brown+ No pre-washing necessary