Anyone have an opinion on this? They're breeding and I don't know what they are.
I'm thinking they are either of these, but I don't know, could be something else...
Otocinclus mariae
http://www.planetcatfish.com/common/...species_id=106
Otocinclus caxarari
http://www.planetcatfish.com/common/...pecies_id=3750