I usually don't go to aquarium only pet stores, but we've decided to add a fish tank to our pet collection so we stopped here. This is the largest fish store I've ever been in and I was very impressed. The best part about the store is the extensive selection of aquarium parts and accessories (filters, plants, etc.) Another cool thing about the store is the koi river going through the middle of a store.
The selection of freshwater fish was extensive, but they did not have as big a saltwater selection as I've seen in other stores.
*Edit: After going to a lot of other fish stores, I've found that the prices at the Ocean Floor are extremely excessive. I guess you pay more for quality, but compared to other stores in the valley, there prices could be as much as double.