MY Experience
As the subject says, just mine. Started my tank up and put 2 damsels in for three weeks. Then a coral beauty which had ich the very next day after introduction. Also a small tomato clown which got it also. The coral beauty died, the damsels never caught it and the clown got over it with no medication. Three weeks later (I know, too soon) put another coral beauty, a firefish and yellow tang. Everyone but the damsel fish got the ich bad. Put two cleaner shrimp and bought some garlic from Kent. The shrimp were shy for three days, but I could see them back there behind the rocks working over the fish (really cool even if I had to put my head against the wall to see) Feeding the fish, the shrimp would stay in the rocks. According to instructions (I thought) I put 4 drops of garlic in the sump near the return. Within 5 seconds, the shrimp were out front and center, looking for food! They went after the flake like it was gourmet. They've never been shy since, and now I use just one drop of garlic, kinda like a dinner bell, every time I feed. Makes the shrimp go crazy. As for the ich, between the shrimp and garlic, it seems to be gone, though I will occasionally see the shrimp try to get on a fish, even though there are no obvious white spots. Also, occasionally I will see the tang rub against a rock like he did when he had the parasite, though he did it frantically then.