Algae have disappeared to 80%

I had severe problems with filamentous algae, Pinselslgen and black algae on the windows. After the 2.Application the algae in collaboration with Easy Life Easy Carbo (daily 10ml) are gone to 80% and there was no Algennachbildung.Es is the only algae means that really does what it says, total fish-friendly, even my white face cutter fish is not harmed in the least.