all the pictures are taken with forced flash and manual focusing (but default aperture and shutter speeds)- if the flash doesn't go off for some reason, then pictures are 100% black!
So far the camera has really surpassed my expectations- it's far better than any other digital camera I've used before- almost as good as an SLR camera. The only problem I've had is uploading pictures from the camera to the computer as I don't like the software it comes with (it keeps crashing!) but that might be my PC. I do need to play with setting a bit more on it, but for default settings the pictures are far better than any I've taken before- being able to manually prefocus helps so much as the autofocus focuses fine on some fish but won't focus on others at all.
pics look great. you might want to check if your camera actually has an aquarium setting - my cannon does. I like how you really catch the irridescence of some of your fish