Is there a macro option? It may be a pic of a flower or something like that on the back next to the button. Thats how to turn it on on mine anyways. I am sure you heard it before but when I was asking about pics everone had the same advice. Turn off pumps use a tripod and take the pic with the macro option but make the area you want to take a pic be small in the middle of your viewer then zoom in on the computer.
It is a really nice camera. It specifically has a aquarium macro setting for exposure and such, and it has the macro and super macro function. The reason the pics are blurry is that for the super macro mode you need to be less the 7cm from the subject and I couldnt get the camera that close with the tripod. The lense is about the diameter of a hair away from the glass in most of the pics. I got some sweet closeups of the favia.