Well oene is about4 inches the male "swimmy" and the other one was bob but since bob lays eggs im calling him bobbette she is about 8-10 inches maybe even alittle bigger. They are really great fish severums and they have gone great with anything I put it the tank. The one bad thing is I cant seem to get fry out of there eggs and they are getting fertilized. I added some blue eye cichlids 4 of them and everyone in the tank gets along great*thumbsups except for the pleco and one of the blue eyes continues to pick on him, but i dont think its doing any harm to his armor.