I use a plastic cup (the ones you get at parties, or at the dentist with the mouth rinse in) with the bottom cut out and 'tights' material taped to the bottom to allow any water to drain out (I will probably replace this with mesh when Simba is bigger and therefore his feeders will be bigger)
I don't use crickets, I feed locusts and fruit flies from the cup. They do climb out eventually, but for the locusts I put a lil piece of carrot in the cup to try n keep them there a bit longer. Not sure if this might work for crix???
Can't keep the flies in anything as they can climb up the sides, whatever you put them in, although putting a piece of fruit in there would probs keep them in there a bit longer.
If you put the feeders in the fridge for about 10mins before you feed them, this slows them down so they'll be in the cup longer before trying to venture out.
I like that the feeders come out of the cup eventually as it makes Simba hunt down his food, so he's getting exercise as well as grub
I'm going to make a shallower one for the worms so he can see them easier.
Other than that, all I can suggest for crix is a deeper cup to try and stop them from climbing.
Hope that helps
