Near UCF
SITC is one you have to see, although not as close to UCF as some others. Take 434 south from UCF to Lake Underhill Rd. Go right on Lk Underhill. Left on Gaston Foster and one block down on left is the shop - easy to miss it so watch out
Also Ocean Blue on Aloma isn't too far.
Then there is Aquaria Studio on SR 434 about 6 miles south of UCF, same owner as Ocean Blue. Both nice stores.
If that doesn't keep you busy enough, there are a couple of stores a little further north of UCF in the Longwood area
- Pet Safari (great 600 gallon display tank)
- Ocean Direct (usually not much sps, more lps/softies and fish)
- Fishy Business (lot of fish, some inverts, lps, softies, no sps usually)