You're not the 1st and you wont be the last lol, that link I posted by Mick Thrussel is spot on, I looked all over Tinternet land for ways of identifying a plaice from a flounder and all I ever found was misinformation or cocky 'it's obvious' when really it's far from obvious to most of us.
Flounder is edible! just cook it in plywood till the wood has turned black then chuck the flounder and eat the charcole
