Hello Pleco33,
I am very glad to see Ancistomus sp. (1)
http://www.planetcatfish.com/catelog/lo ... /802_f.htm makeing its way around the world...lol I am glad to say I own a nice group of 6 of these and house them in a 38 gallon tank. 34/24/12 I beleive are the dementions. From what I have seen so far, they do great in groups.
I owned only ones of them tell about 2 months ago and never really saw to much of him/her. Mine dont want anything to do with the plants in my tank and seem to prefer the wood structures I have built up for them. I also house 2 clown plecos and some oother out of the normal clown in that tank. this one looks like a clown but has reticulated stripeing thru its body.
Anyhow, from my test runs on food they love shrimp pellets and any other meaty food I throw at them. They also go for veggies and sinking algea tablets. They dont care for bright lights, so I have redone my lighting to acommidate them. lol and all the wood i have in there helps also!
Well good luck to you. it appears you got yourself baby on your hands. 2-3 inches is what I am getting from the photo. Mine curretly are from 4-5 inches in length and still growing!