how to stop rtn?

[Borderjumper]

Originally Posted by Nano

Water flow is pretty good IMO. I have a dozen other sps frags I've had for 6 months +/- with no problems no parasites I can see. Mind you its tough to see them sometimes and it was fipped while acclimating. The lfs had it for a good month before I bought it as I've been eyeing it up. So I don't think it has anything to do with it being transferred to quickly.

What and how long did you dip it in?