They key at first is providing enough "smell" that makes the females want to come in a lay, they will only lay above an area that they know is a food source, how much "smell" is anyone's guess. I tried a screen enclosure at first and I just could not get it to go, but I probably gave up to soon...
lol, my wife gives me grief all the time. "Are you on another bug site, what possibly more could learn about bugs?"
Just a warning it can get pretty nasty considering it is composting rotting fruits and vegetables. It is by far the main thing I try to keep hidden on the side of the house from...
You can, I have a full setup that produces 1000's a month, just check out the setups they have on http://www.blacksoldierflyfarming.com/. This is the one I built
http://www.blacksoldierflyfarming.com/bsf-marketplace/3-bsf-composting-units/5-bsf-bio-composter
No Homedepot and Lowes do not carry it you have to order it, Here is where he is talking about
http://incubatorwarehouse.com/catalogsearch/result/?q=flex+watt
Depending on how old the crickets are you can keep them alive for weeks, I think their life span is about 6-7 weeks. I typically buy 4 weeks old ones and keep and feed them off for a month with almost no deaths. Just always keep food and a water source like water crystals available all the time...