Alright! Score one for Dread's Petsmart...that's a start. Now if we could get the rest of them on the bandwagon.
The girl at mine said a 55 would be needed for a Trimac at first. It was only when I said I only have a 30 that she said it might be ok. I think she thought she might lose a potential sale if she just flat out said no it won't work. When instead she should handle it something like, "Well no the Trimac will grow far too big for your 30 gallon tank sir, but I can help you find an awesome fish that would thrive in your tank. Both you and the fish will be much happier". What's wrong with that?