Oh so the people I'm seeing that use critter keepers must have the non climbing species, I didn't think of that!
I have one of those gasket bins from target that I'm going to use, but then I was thinking for other smaller colonies/for display roaches that critter keepers might be good since they come in smaller sizes and are a good shape and have ventilation already installed. Like maybe for discoid which don't climb. But it might just be easier to use bins (I've hear the lids on critter keepers aren't as easy to remove) if I can find some that are of similar shape/size to critter keepers.
Yeah re netting I've been told that fine nylon mesh fabric is good for preventing nymph escapes so I suppose even for climbing species I could use that over the top of critter keepers with the lid placed over it. Or I might do the same with a fish tank. I'm not really sure yet.
I've heard of the petroleum jelly but then I realized that even if that does work really well (I wasn't sure if it did) I'd still have the problem of other insects getting into the roach enclosures if I didn't use mesh netting over the top. Like fruit flies etc would become a problem (we get fruit fly problems a lot).