I've caught a 16.5# striper, a 17# blue cat and a 20+# carp from my tube using a fly rod. None of them took more than 15 minutes to land. I let them take line out until I can turn them around, then go around and around with them until I almost get dizzy, lol. I always have a trout net with me in my tube and am sometimes able to get the bigger fish into it. Other times I have to work them to shore so I can land them.