In my experience, madtoms WILL nipping on goldfish's long flowing fins and actually trimming them down. Also I would toss the shiners and chubs idea out in the window. They don't make good tankmates for fancy goldfish, but perhaps for single-tailed goldfish types.Not all madtoms..,...some are only come out at night and will only hunt for food on the bottom of the tank. Red Shiners , Common shiners , the larger Chubs would all be good goldfish tankmates.




