This is my first post so please bare with me... Fished Sharron Harris on 6/5 and caught 15 keeper (15"+) sized catfish. Most looked like blues or channels. Caught one real nice channel about 7lbs. How can you tell the difference between the Channels and Blues when they are 15 to 25 inches long? Thanks, Fishengineer PS Tasted Great! Best eating cats I have had in a while.