I was in a couple of major fish stores this past week (Not Petco or Petsmart) but ones that specialize in marine fish....they said when they get fish in, they immediately put about 10-15 gallons of water in a bucket from one of their tanks, drop in about half a bottle of Formalin (hope I spelled this right) and left the fish in there for approx 5-10 minutes to kill any parasites on them...then they simply dip the fish out and put them in the tank. I heard this from 2 just this past week so I have begun asking other fish stores if they do this and they said yes as well....BUT they were reluctant to tell me that MOST if not all fish stores do this and it really works...I asked if this would take care of ick and they said 99% of the time....Anyone else try this?? I did this not to long ago and so far so good....what does everyone this about this?