JBL Manado is a natural substrate for freshwater aquariums that promotes healthy soil flora and is ideal for plant care. Its porous structure and nutrient storage function encourage vigorous plant growth and prevent algae by facilitating the colonization of beneficial soil bacteria and optimal root development. It also aids filter efficiency and contributes to crystal-clear water. Suitable for fish, invertebrates, and plants, it releases no undesirable substances into the water. The round-shaped granules are gentle on the sensitive barbels of bottom-dwelling fish. This substrate has high storage capacity, absorbing excess nutrients and releasing them as needed. Available in various sizes.