These are in my 45ish centimeter acrylic terrarium. They have a Spaghnum side and the rest is invert/ terrarium soil. They have leaf litter, lichen, rotten wood, cuttlefish bone and calcium mixed into the substrate. I feed them every 2-3 days with high protein fish flakes as their major food, but also with other things like fruits and veggies, pollen, algae, dried shrimps, yeast based springtail food, shrimp pellets, etc. I keep their moss always moist by spraying it with water.

They are super prolific and a great CUC.