I just
read a post here alluding to otos going after the slime coating on other
fish. This is something I wasn't aware of..

Most of them don't do this. Every once in awhile, you'll get an oto that does.
Some plecos also do this. Otos, IME, are the least likely of sucker-mouthed
fish to attack the slime coats of their tankmates, while CAEs are most likely.


First my tiger barbs, now most of my fish, are scratching against plants and
the heater, etc. I've seen some things that made me think gill flukes (esp
the tiger barbs' gills look discolored).

I don't think the otos are to blame. It sounds like you have some kind of
parasite in the tank.





Leigh

http://www.fortunecity.com/lavender/halloween/881/