You are a really good photograoher!! You dont need any tips you need to give me tips! LOL. The pufferfish looked kinda skinny. The oscar looked really good that make me want to get 1 (only fish my mom lets me get another tank

) Im in love with the turtles i have 3 of them. Does anyone happen to know what the yellow fish at the bottom is? Its so pretty
Thanks! The oscar made me want to get one too. He was posing like crazy and just kept following us for quite a while.
That day I was using a Nikon SLR D70 with a Tamron 18-200mm lens. All tanks except for the shark tunnel were lit pretty well from above which made it easier to see and capture pics. I tried both without flash and with flash... and let me say pictures with flash were the best ones. The only problem is having a white spot on your subject if you don't slightly angle away. I need to buy a seperate flash with diffuser... that would definately improve things. I also have a pocket Panasonic Lumix DMC-FX8K. This is a great small camera that has an amazing macro mode and image stabilizer. I also like that it acts like a rangefinder for night pictures.
For those who want to improve their digital pictures, I would recommend trying a graphics program to adjust their pictures. From what I've seen, almost 100% of the professional digital photos out there have been adjusted. This is not altering your pictures; this is just adjusting the raw image your camera takes. Taking a class in Adobe Photoshop and digital photography was the best thing I did for improving my pictures.
Here's a few things that I do at home:
I import my pictures into iPhoto. I like iPhoto because it's easy to adjust the levels in your picture. I usually adjust pictures by slightly increasing sharpness, contrast, and saturation. If the picture has a blue, water cast, I'll also slightly lower the tint and increase the temperature. If the photo is too dark, I'll slightly increase exposure and brightness.
Sorry, if the above was too much info... but for those who wanted to know, I believe in sharing.
EDIT:
Found it. The guy in the 6th & 10th picture is a sawfish.
Sorry about calling the other one a polkadot grouper. That's how it's listed in my book and then under the description it has "Other name: Pantherfish"