Agent Green is the answer by ATM for the phosphates removal both for freshwater and marine aquariums, in opposition to the usual resins that we have always used. The difference? Especially its speed and its practicality.
Recently, Zurich Zoo completed a reorganization of its aquarium exhibit (opened the 28th of September, 2016). The new exhibit features fewer but larger tanks compared with the original exhibit. There are now only eight aquariums: four are fresh water, three salt water, and one tank strikes a balance in between: brackish water.