Identify please

[Tmantanker]

Curious to what this is I've caught a number of them, they have red tint on the fins and a bottom feeder mouth
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[robham777]

I took a look at my Petersons Field Guide and think that is a spotted sucker(minytrema melanops. Here is a link to some information and pictures.
http://www.seagrant.wisc.edu/Home/Default.aspx?tabid=605&FishID=148