Marshmello's we used years ago to get bait off the bottom fishing for trout in Western Montana; worked great. Well Channel Cats it sound's like are sometimes caught on some kind of bobber rig that holds the bait off the bottom. I wonder why using marshmello's instrad of the bobber wouldn't work? Then I got to thinking and why not use Power Bait to float the bait? I've got a bunch of old trout power bait from years ago and it's still good. Wonder how it would work? Opened a jar and it smell's strongly like fish! Gonna have to try it next trip out. Stuff float's like a cork!