04-26-2010, 01:31 PM
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Originally Posted by ITFishGuy
That's good to keep in mind, when I got this batch of four they cleaned up the tank fast as well as the plants, but then died off. I am hoping the last guy will adjust and he appears to have a bit of a belly on him. How long did it take for your Oto's to settle in? I am hoping I can get some more, but I don't want any more to die since I like the fish so much. Thanks for the insight!
First, I never introduce otos to a new tank until there is significant algae, either green and/or brown. That enables them to settle in naturally with the food they want/need. Usually this would be 3 months after setup, and I would normally only get 3 at first. The reason I have five is that I had initially acquired 3 for one tank and then 2 for another slightly smaller tank, and after several months the tanks were moved to another room and re-aquascaped and all five went into the larger 115g as I have Farlowella in the 90g and they are equal to otos in dealing with common green and brown algae. They also, interestingly, acted the same; initially feeding on algae, as that diminished they went down with the corys and now also are on the substrate every morning waiting for the tablets; during the day they like the otos in the 115g spend their time browsing every available plant leaf and wood in the tank, though I doubt they get much in the way of algae.
If the tank is established, make sure there is a fair bit of common green algae (shouldn't see brown diatoms in established tanks, so it will presumably only be green). Introduce maybe 2 at a time and slowly build up the group over time.