what about this for a lfs
tank: they have a plant tank where the grow all the live plants for people to buy. this is also the tank where they put the sick, dying fish. it is also laced with pond snails. iv noticed a few of the guppies in there with snake spines and a few mollies with pop-eye and some very bloated neons and ich decorated gouramis. they still manage to sell plants though?!?! how i do not know.
although, in its defence all the other tanks are healthy and primarily clean. properly labelled and all.
im surprised about how stores DONT put how big they get? all the ones here do. some even exaggerate!