Hello folks! Had my tank now for 2 months. I have 3 hermit crabs, 2 nassarious snails and 1 turbo snail a fire fish and a flame back angel. Both in the tank for a few weeks. Unfortunately, ilthe flame back has ick. I am treating him (the tank) but he acts strange..only more towards the crabs tho. He shows no aggression at all (even to the fire fish.)what he does is when the crab is on the substrate, he gets up stream of the flow in my tank and keeps his tail on the crab's shell, and moves his fins real fast to stay on one spot and his breathing gets very quick. Its very odd behavior thats been going on for a week now. Anyone seen this or experienced it? I just started treating the tank with ick treatment and garlic exract today. Also adding vitamins to the water as suggested by my lfs.