Originally Posted by
sepulatian
Why do you ask Brett? Please explain your situation.
I had an Ich problem in my 180-gallon tank. I decided to remove all the inverts and live rock and hypo the tank. I had the tank in hypo for 8 weeks. When I was bringing it out of hypo, I noticed a spot on my purple tang - didn't know if it was Ich or not, but was not willing to take a chance. I set up my old 50 gallon tank (this is where the inverts were being kept) with water from my 180 and put all the fish in the 50. I then put them in hypo for another 2 weeks. Meanwhile, I raised the salinity in the 180 and put the inverts back without any of the live rock. The live rock went into a garbage can with a powerhead. I purchased about 200 lbs of uncured live rock (Tonga and deep water Tonga) from an on-line vendor - absolutely stunning rock I might add. It took about 10 days to cure. I put the rock in my tank and left it fishless for 2 more weeks monitoring all parameters and having the temp at 84 degrees. I purchased 4 fish (2 Hippo tangs, 1 Power Blue, 1 small Huma Trigger) at my LFS and put them directly in the 180. They were perfect when I put them in, but within 1.5 days I began to notice some spots starting on their pectoral fins. The next day, I saw that they were covered with Ich. I removed them, gave them a fresh water dip and put them in a 10-gallon tank. Now, before I put the original residents back in the 180, I was asking to make sure this Ich must have come from the LFS. I didnn't know if 1.5 days was long enough for Ich to attach and become visable. My 180 is still fishless at this point. I put Cupramine in the 10-gallon for the new fish at this time. Thank you for your input.