definitely doesn't look like the white sucker... possibly the longnose.. I might try and snap a pic of some adolescents in the next couple days if I can catch any (if I do I'll post)...

thanks for the reply

Hey guys... I have a fairly large natural spring fed koi pond and the other morning my mother was down to visit and to her amazement seen what she thought was a 6" to 8" pleco.. dark in color with grey or silver spots... First off I'll mention it's spring fed so it's really cold... the water rarely ...