Mike, I would recommend incubating at around 82 as 84 is too warm. Unless of course you are looking for a lot of males (which I don't know why you would be) - FYI. They will take slightly longer to hatch but they don't incubate very long anyways. I'd also suggest that you bump up the heat on your hot end, and don't worry so much about a night drop as it's not essential nor is it important for their well being. There really isn't any benefit to that, perhaps when you are preparing to brumate them, but when they are laying I wouldn't recommend it. I set my thermostat accordingly so that the surface temperature of the sand above the heat source (heat tape/rope/pad) is in the mid 90's. They seem to eat better, metabolize that food faster, and do very well with laying and thermo regulating themselves when they have the option to access a very warm area. Nephrurus in tanks (or anything with clear exposed sides is not what I would recommend, but if any Nephrurus could handle it, I think it would be the wheeleri. They just can get stressed if they see people through the glass, especially in a high traffic area of the home. The Nephrurus are not display animals. If they are put in this type of situation they will often be in their hides and will be stressed out. Even if you covered the back and the sides so that the front glass was the only see through part it would help them a lot. A 5 gallon is totally adequate size for any single adult wheeleri as it's basically shoe box sized which is what most breeders use in their rack systems. I've had a few wheeleri over the past few years and have only had a few eat or prefer worms to crickets or roaches. They seem to like the movement of the crickets and roaches as those types of insects are most likely prevalent in their native environment more so than worms so that is probably what they evolved to eat. I've not had good success in getting my gravid females to take the occasional pinkie mouse either, even with pygmy mice pinks which makes me think that their natural diet is likely spiders, crickets, roaches, and the occasional scorpion.