I am wanting to buy otos, but need to know if what our LFS stocks, is the right thing or labelled correctly In comparing these through google searches (Otocinclus vs Chinese Algae Eaters vs Siamese Algae Eaters) - it seems that the otos come out tops in terms of 'lack of aggression', 'won't eat your plants'. Identifying these fish seems easy enough, although people seem to display images of oto species that vary with each website. So please help and correct me if I'm wrong here The Siamese AE has a solid black stripe down it's body: The Chinese Algae Eater has a more spotty appearance and very slight brown line along body: And the Otocinclus have a black line down the body and black dot on the tail: Ok, my other question is: Are all the otos pretty similar with respect to aggression and not eating plants - or do I want to see if I am able to get hold of the affinis? Does it matter which oto species I get? (what are differences) Thanks a million!