I am seeing more and more states going to a length limit on catfish. Ohio has a 28" rule on Channels and 35" on Flatheads. You are only allowed to keep one a day over the limit. What makes me laugh is when I see guys getting excited about catching 10-15" channels and keeping every one? Sure they are great eaters but what effects the future population more, being able to keep all Channels that are 15-27" or the more rare 28" being limited to one a day. I think there should be a slot limit on Channel cats. Why not just being allowed to keep fish over 18" and place a daily bag limit of say 6. Most other sport fish have this type of regulation.