I keep red worms (eisenia fetida) in a compost bin in my basement and use them to fish for bluegill and the occasional catfish. They work pretty well but they tend to be a little small. Are there any other worm species that you can keep in a bin year round that make a better bait for catfish. By the way I have a bias against nightcrawlers because I always seem to kill them in the bin...... I think the Ph gets out of wack????