I also went there- the place is pretty much cleaned out because the guy said the sale has been going on for 1 month.
The 20 gallon used tanks have a blue painted back and a lid, no holes are drilled into them. They are selling the bigger tanks for $12 (I think they are 40 longs or 55's) but you got to wait until they're clear of fish.
They also had a new wet/dry filter with overflow box and media for $175. It was probably a 30 gallon sump but wasn't interested at that price.
The 20 gallon used tanks have a blue painted back and a lid, no holes are drilled into them. They are selling the bigger tanks for $12 (I think they are 40 longs or 55's) but you got to wait until they're clear of fish.
They also had a new wet/dry filter with overflow box and media for $175. It was probably a 30 gallon sump but wasn't interested at that price.