You have basically have hit all that are worth going to in Virginia. Petland off 236 next to Chuck E. Cheese in Fairfax has a fair amount of fish as well. I live in Centreville and prefer Centreville aquarium as well. Dave the owner is very knowledgable and while he will try to sell you stuff, he can be relied on for honest advice and will not sell you something you do not need or is detrimental to the health of your fish. Anytime I have crossed checked his recommendations I have found him to be correct. If you buy something large his prices are negotiable if you shop around.
Wallys is hit or miss the owner and one other person, whose name i forget are quite good, everyone else is clueless.
Wallys is hit or miss the owner and one other person, whose name i forget are quite good, everyone else is clueless.