I don't have a Lunar, Yet. It's getting hard to keep track of all these guys. I try to get up every morning and do a head count, but some of them bury in the sand and I don't see them untill the afternoon. Even with the top on, I still come down and check the floor around the tank to see if one might of made it thru the netting. Most of them are just too big to make it thru, but a couple could make it if they jumped just right.