Kole Tang with Growth
This is my first tank, and my first fish so I'm worried. I have a 29 gallon Biocube, stock setup with no alterations.
I woke up this morning to find he had discoloration and what almost looks like lesions on his right side near his front fin under his gill (pics below, but they are not that good). He did not have this last night before I went to bed, when he had been in the tank for about 4 hours at that point. He also has a small nick in his bottom back fin also which I am not sure was there or not.
I acclimated him using standard drip procedure, and kept the lights low through the whole process. I try to do everything by the book as I am new to the aquarium world. I just got the fish yesterday from a local reputable store. He was wild caught two days ago, and has been in my tank about 12 hours now, and is the first and only fish. I have live rock, snails and crabs. Tank has had rock in it for about a month now, crabs and snails added about two weeks ago along with one small coral frag.
He is swimming around pretty normally (at least in my 12 hour experience). He is hiding within the rocks and coming out here and there, but he is also adjusting to his new home. He is eating algae off the glass mostly, and there is a seaweed strip in there which he hasn't touched, but might be because he has not noticed it. His behavior looks the same as it did last night.
Water was tested at the store yesterday before getting the fish, and everything looked good. Temp is at 79, and salinity is 1.025. I can't identify what is going on, but obviously want to help him ASAP. Any help is greatly appreciated. I am a rookie and need a veteran here!