My largest fully grown Male is 9 inches but 4 of that is tail and tail threads. My females are about 5-6 inches long. They are Very docile fish and pretty good algae eaters too. I call them Lizard fish; they look more like a reptile than a fish.
Lympies look like tiny alligators to MEEE!! Her's aren't royal, though. Just, like. . . peasant Farlowella, I guess! I saw the images of the adults in your album and they are fantastic! Like something out of a fairytale. . . really neat critters!