Best way I've found is a 32oz cup with a hole cut in the lid, as mantisgirl13 said. I stop up the hole with a piece of foam. At feeding time, I remove the stopper and use a funnel to add flies.
I recommend a mesh cube like
this to use when you are separating nymphs or cleaning their enclosures. You can see through the mesh to do what you need to do while the nymphs can't escape. I also recommend labeling your containers with a count as to how many nymphs there are. This way, if you open it to clean or feed you can do a head count and make sure you didn't lose any nymphs. It also helps to track if you lose any to canibalism between feedings.
I use a small paintbrush (like the cheap, little plastic kind you give to kids) to help as a tool to seperate tiny nymphs. They can grab onto the paintbrush and you can transfer them without damaging their delicate, little bodies. I always call it a 'magic paintbrush ride' lol. Some are still difficult jerks and stagedive rather than grab the brush, but it is very helpful in nymph wrangling
Hope that is helpful. Congrats again on the hatch!
may try to poke a hole and plug it with foam next. Or maybe i should only open the containers inside a larger mesh container? These guys are much faster than the chinese nymphs i raised in the past. Did divide the cup with most of them into two cups so now they are in three cups. Will let them come back to the top and hope most of them are still ok. I think from now on i will just purchase older slower moving ghosts. Their reflexes are far superior to mine and they are so fragile.
