under water
Contributor
Not really. You need to add back the colors that are filtered out by the column of water above you. Bringing a torch or strobe is the only way to do that. It is incredible how much red sponge is under the overhangs, but very few people see the colors without bringing a little sun with them... Are the colors that vivid without a torch?
Without a good strobe and some white balancing to offset the lack of red, you would not see the colors in this small patch of reef very well.

The exception is when you are shallow. Within 20 feet of the surface on a sunny day, in clear water, you can see the colors quite well. Unfortunately, a lot of the colorful stuff isn't usually that close to the surface.
I use a wide angle lens so that I can get closer and maximize the amount of light that my strobes provide as well as minimize the effect of the water between the strobes and the subject.
The picture below shows the effect of the strobe highlighting the red whip coral. As the coral gets further from the strobe, the red color diminishes and fades to black. Without a light, the coral would pretty much look black.
