2HR Aquarist APT F/Fix is a highly effective solution for targeted algae control in freshwater aquariums. It helps to eliminate stubborn algae such as brush algae, beard algae and blue-green algae (cyanobacteria) without disturbing the delicate balance of the aquarium. 2HR Aquarist APT F/Fix targets problematic algae by attacking their cell structures and inhibiting their growth. At the same time, it helps aquarium plants to recover and continue to grow healthily.2HR Aquarist APT F/Fix+ effective removal of brush algae, beard algae and green algae+ safe for fish, shrimps and plants when used correctly+ promotes the regeneration of healthy plants+ no change to the water parametersDosage 2HR Aquarist APT F/FixliteStandard dose is 1 ml per 10L of aquarium water. The 300 ml standard bottle contains a calibrated dosing pump - press once = 1 ml.