trying to get some help on other groups since it is fish-related. 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..

BTW does your "otto" look like Chinese Algae Eater

http://www.thekrib.com/Fish/Algae-Eaters/

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Thank You

Dominic
http://www.dlink.org/aqua