Sera Crystal Clear Filter Medium Discus so there is some controversy

so there is some controversy on what habitats are ideal for them in captivity

hardy addition to any saltwater aquarium

use 5 ml of this product in a high flow area of the main aquarium

Flourish Iron and Flourish Excel

this fascinating fish quickly becomes the star attraction of any aquarium

Sera Crystal Clear Filter Medium Discus so there is some controversyHigh performance filter medium for mechanical filtration The innovative, patented 3D fiber structure of sera crystal clear Professional very quickly removes even smallest particles above 10 m (such as floating algae or sludge). Unlike common filter wool, the filter balls keep their shape and can be washed out several times. They are 80% reusable after washing out. The high performance filter medium is suitable for both freshwater and marine aquariums