Flounder Cleaning Instructions - How to Clean a Flounder

From Ron Brooks, former About.com Guide

Once you finish the dark side, turn the fish over and repeat all the steps. The fillets on the white side of the fish are much thinner than those on the dark side. Smaller flounder are difficult to handle when filleting the white side. Some anglers fillet the white side first. They feel that filleting the dark side first removes some structure that makes the white side harder to fillet. I understand their thoughts. I think I do the dark side first out of habit more than anything. Try both methods and see which one works for you.