1 Mainiac, Steels are exactly what I was hoping for. They are considered by the DNR as the least polluted fish in the lake area around Holland (I do not actually eat Fish, but my wife and 3 year old son love it). Scum line? is that the discoloration from the channel out flow to where it meet the cleaner lake water? Temperature breaks, steels like the colder water right? Thanks guys for all your help!