Necrocanis, what a great thread. I thought it was only about RTC pics and rearing info and not disease. Well, as it happens i have an RTC with a potential gill-curl?
I have a question thread specific on this (more pictures) at
http://www.monsterfishkeepers.com/forums/showthread.php?t=170962 RTC had it for quite some time (before i moved it to outdoor set-up). The curling does not seem to develop further but it is not getting better either. One of the 'soft' parts of the gill is flabby (see the picture). The 'hard' part of the gill is OK and is closed snuggly so the gills itself is not exposed or anything. After close examination it appears that the 'soft' part of the gill has some small leisions/wounds? on the inside (see the picture). Water parameters are acceptable according to the test strip (also other fish are not affected).
Please do note that the RTC with problem is missing three lower whiskers (from the day i got him) ... i wonder if that is also a reason...
If it is a water problem, then why the other RTC does not have it ... and neither do other inhabitant.