This camera can't be controlled or tamed. Excellent shots are lucky and bad shots are unlucky. You can't tell the camera to do different than what it chooses to do, so every frame is a roll of the dice. If you roll the dice over and over and over, eventually you might get a good roll.
The only thing you can really do to improve your chances is to make sure the camera has LOTS of light to work with. As ironic as it sounds, even high wattage reef lights don't make much light in photography terms, so this will be difficult. Flash should help but again, everything is automated and uncontrollable, more often than not resulting with an incorrect exposure or at best washed out coloration. To get consistently good results, you'll have to learn a thing or two about photography and buy a camera that will let you put this knowledge to good use. Basic photography knowledge won't help you with this camera because, again, you can't change how this camera does things anyway. If you know a lot about photography, knowing exactly what conditions will make the camera behave in a certain way, you may be able to change the surroundings in a way that changes how the camera will react. This would obviously be on a case by case basis and if you know enough about photography to accurately predict how the camera will react to a situation, your skills would be MUCH better utilized with a camera that lets you make make the decisions yourself anyway.
