I bet we've all been through it. Watched alarmingly as the greedier fish in your tank mop up all the food before the slower, less aggressive fish get a look in. Then you start questioning whether all your fish are getting their fair share. I have 4 tinfoil barbs, amongst others, and those of you who have these fish will probably be nodding your heads already. They are dustbins with fins, i can't describe them in any other way. Then i got thinking, which aquarium fish would hold the crown for the gut bucket of the aquarium world. Tinfoils are pretty much up there but i bet there's worse.