If you're ever in Taiwan, there's an aquarium in Taoyuan that you should check out. It's got an arapaima tank with over 20 2m+ pimas as well as a 3m saltwater sawfish. The feeding shows are awesome!
I'm in the uk and i've been in ther 50+ times and done 100+ shamu showThe only aquarium I ve really beend to is Sea World - Kissimee (yes *most FL theme parks are Kissimmee not orlandoI have pictures but they be in the photo lounge area thing. Its fun if its your first time going. I have year round passes. I cant wait to see the georgia aquarium though!!

Hi. it is kind of a hobby of mine to explore aquariums around the world. It's always pointless to look for the "best" anything because it all depends on what each individual wants that day. Here are five not mentioned that I really enjoy:
New England Aquarium (Boston, USA)
This place has a great variaty in an easily accessible layout. Fair prices, and a great seadragon exhibit. The giant ocean aquarium tube that you walk around is sort of common place now in aquariums, but this one is still well thought out and enjoyable as any. Theres a pretty big freshwater section with a lot of big monster cats and piranha and such. Another great thing here is that you can purchase tickets to go whale watching and the boat leaves from right near there out to the ocean.
National Aquarium (Baltimore, US)
This place has a ton of animals and is really big. I just hate that when I went, it was crawling with people and I didnt have a good time... I want to try again during the week.