I had 5 otos in a 3 month old tank. they ate the algae covered walls within a week. after a few months, i now have 1 left.
otos will ONLY eat tank algae. theyr'e great for algae eating but once the supplys gone they will die of starvation
As for the sorority - yes that would be overstocked, and as stated, you shouldn't try ottos without a well established tank (at least a year old or more) and where you can have algae growing on the walls constantly.
Last edited by cajunamy; 04-03-2012 at 06:46 PM.