I managed to get in the water for the first time on Saturday thanks to Tribs letting me have an old pair of fins of his - thanks a lot. Saw some fish and small spider crabs, I don't know what the fish were but don't think they were edible. Looked pretty kind of had swirling yellowy/brown patterns on them - wrasse?
Almost certainly wrasse which come in many colours/patterns but are the most colourful of our UK fish.
Check out the HOF (link in my signature below) as you can use it to readily identify common species.
Dave.