Newly decorated aquarium can be filled without break-in with fish . Regulates the PH value of water , decomposed ammonia, ammonium and promotes ideally healthy aquarium biology . Small aquariums run stably as large . The plants receive nutrients and maintenance is made much easier because our soil is not compacted and the water exchange is reduced Colomi aquarium floor is ideal for aquariums , nano aquariums , terrariums and aqua-terrariums . Colomi zeolite aquarium floor is lighter than tanks stone floor . 20 liters of our aquariums soil corresponds to the amount as 30-32 kg stone aquarium floor . The colors in the product images shown may differ to the product supplied . This is not a quality defect , but is because the natural for producing raw materials.