well that could be it.. pH is on the low side. I just tested it the other day and wouldnt have expected it to be so low. I've got some seachem marine buffer im going to add. Good thing I asked...
He is sorta the ever-loving boss of the tank, no one bugs him really, and I have the 3 types of food they get. He still eats well.
Im going to bet its something to do with the pH. I feel like a bad parent! lol =/
edit:
ok pH is back up to 8.3 and I'll keep an eye on it the next few days to make sure its stabalized. Hopefully I'll see an improvement.
all other parameters are 0 except nitrate is 40 (ive dropped feeding down a little in an attempt to get nitrates down further, my calerpa is doing good keeping it in check)
side curiosity - if the problem is in fact the pH being low, would that affect the angel moreso than the other fish? My fairy wrasse and purple firefish are both very colorful.
edit #2
Well today I woke up to see mr angel not doing so well. Hes obviously stressed and hes starting to look splotchy and just kinda hovering under rocks. So 1st thing I did was head to the fish store and got myself a bottle of Quick Cure as per they guys recomendation, prepared 2 gallons of
FW + buffer + quick cure and gave mr angel a dip for 60 seconds. There were definetly bits of white spots at the bottom of the bowl afterward so I think it at least worked somewhat. I was recommended to dip him like that 3 days in a row. Hopefully he gets better soon =/