New(er) to the hobby and I received this clown from a reputable quarantined fish dealer 4 days ago. A strange pattern of white dots has appeared that run along a line on the fish's body. It is also not eating; it has not eaten since arrival. There have been no fish in the tank for a few months due to a SNAFU involving my BTA eating one of my original clowns, then being unsuccessful in repairing the original female. If it is ich, it definitely came from the LFS I bought my second clown from. Pics attached. Can ich show up in 3 days? I fear the worst. Luckily, I just set my upgrade tank up, so worst case is I can start fresh with quarantined fish in a fresh system.