Easy peasy,get yourself a ten gallon tank or a plastic bin,add a cardboard tissue roll and some veggie scraps and you are good to go.my wolf fish loves them..... if only i could keep those crickets alive a little longer I would be able to buy more than 20 at a time.
I have even fed them fish flakes and crushed pellets...a dead feeder goldfish too.They eat just about everything I give them.I've actually loaded them up on pellets, then freeze. I'm not sure if that changes the nutritional value, but worked well.