Wondering what size tank an adult falgtail prochilodus would do good in. I'm redoing my 75 and looking for a centerpiece fish and I stumbled across a 3" one at my LFS and fell in love with it's personality.
I had my 8" flagtail in a 6X2.5X2 (220g) tank before I transferred him to my 300g outdoor tank. They grow very slow. A full size flagtail would need a 5 feet long tank minimum I think. I like them very much too.