Dennerle Scaper's SoilACTIVE SUBSTRATE FOR PLANT AQUARIA Key Featurs: Nutrient substrate for strong plant growth With all essential minerals and trace elements With fertile volcanic soil With bio filtering function for healthy, clear water Actively creates soft, slightly acidic water (approx. pH 6 6. 5, CH 0 2 d) Twice baked lasting water stability Ideal in combination with CO2 fertilisation With valuable humic and fulvic acids Ideal for all plants, fish and shrimps that