Hygger CO2 Aquarium Soil Water Grass Mud Fish Tank Aquascaping Aquarium Substrate Soil for Plants and Shrimps,No Need to Wash an

Hygger CO2 aquarium substrate is selected from the original layer of black palm soil in southern China. lt is a weakly acidic soil with humus accumulated over a long period in humid subtropical regions. lt is rich in organic matter and trace elements such as free iron, which is processed into granular form using advanced technology and provides a suitable substrate for aquatic organisms.