Reef primer will clean away: Zoanthid Eating Nudibranchs, Montipora Eating Nudibranchs, Acropora Eating Flatworms, Brstlworms, Zoanthid Eating Spiders, Red Flatworms, Filamentous Hair Algae, Rapid Tissue Necrosis, Slow Tissue Necrosis, Bacterial Infections, and More. Add 45g or 8 caps full of Reef Primer into 1 gallon (4 liters) of aquarium water. Mix throughly, making sure that it has completely dissolved. Dip your corals and frags for a maximum of 5 minutes,