underwater camera suggestion

[GoFish]

I'd recommmend the Olympus tough series cameras as well. The TG-4 takes amazing close up pics also from as little as 1cm away, it has some quirks though. I kinda prefer using a TG-820 instead which saves camera settings for the next time you turn it on, and the lense position in the corner of the camera makes it a bit easier to take coral pics with out the camera blocking the lighting, and it's quite a bit cheaper if you find them. They 820 has its disadvantages too, it has a moving lense cover which can get sticky/sandy, a few extra metal pieces which can corrode if one isn't really diligent in freshwater rinses right away.
Custom white balance settings with both is awesome, no need for filters or post processing once you get it dialled in.