N. wennerae are a shallow waer species that is common above 5 meters, so they can stand strong lights. But, I would go for a 18 watt 18" flourescentfixture which is enough for coraline and good viewing, but not too expensive. You will at least 2 pounds of LR though you can use like a pound of live rock and a few pounds of base rock (I got mine for $2/pound) Make sure some of the rock is big enough for the mantis to make a burrow. Substrate can be oolitic sand to pebble sized. I prefer sand personally. Some good pea-sized rocks for the mantis to close the door to its home are necessary.