Treat them as you would ay polypterid.Most importantly see the above post,you may consider covering your filter outakes with a a bit of fiberglass screening too.
As for food bloodworm,blackworms,eatrhworms,a good quality pellet and feeders either rosie red(albino fat head minnows) or guppies that have been properly quarantined.
water temp high 70's low 80's
tank idealy should have fine gravel or sand substrate
size in the wild 30 inches have been recorded,in home aquaria 15-20 inches is more likely-Anne