There's pretty much 4 places to go in B'ham from what I can tell now. Never been to Tropical, then there's AquaD, AquaImports, and some place in downtown homewood. Forget the name of the place in homewood, but they basically only have saltwater fish - nothing else (saltwater wise). I personally am partial to Aquarium Imports, but thats proly just cause I've been going there for 2+ years. I feel as though those guys really know what they're talking about if you're looking for some good friendly advice. They don't always have the coral selection that AquaD does, but the frags they do have are quite large and I think quite a deal.
I think the move down to Pelham for AquaD was the best thing that could've ever happened to them. From what I hear rent was WAYYYY too high at the Gallaria for a LFS and everytime I was in there there was always tons of people looking at the cool tanks but no-one buying anything. From what I've seen recently, the move to Pelham has allowed them to bring their prices much more back into the reasonable/competitive range!
For anyone trying to get to AquaD, I was down there the other day at the new location and picked up a business card. Here's the address. Like others say, its not always open when its supposed to be, and they don't always get in all the livestock that they promise when they promise to - so I'd definetly call ahead before heading down there.
Aquarium Designs
2152A Pelham Pkwy
Pelham, AL 35124
Ph: 205-444-9952
So obviously per my previous comments about AquaD and Aquarium Imports, I'm not trying to promote AquaD or anything - just providing the address for the new location for those asking about it in the threads.