Thanks. I still feel like I really need to learn how to shoot through thick acrylic and deal with blue-tinted lighting to make this type of shot really work. I view these are "First Attempt Mk. 0".

It was interesting to read some of the articles on shooting fish at aquariums. Most of them contradicted each other. I saw one suggestion from Nikon cameras that I think I like. They suggest setting manual exposure for something like f/4 and 1/125 sec and let the ISO float through selecting auto. i want to see if I can do teh same with my Olympus or not. I think I can, but I am not sure about the practicality of it.

My way of shooting at the Aquarium in Honolulu with PITA plexi (that wasn't cleaned well) was to use a narrow depth of field focused into the water, a tripod and LOTS of patience to wait and let the fish swim into the narrow depth field.