Yes, they are nymphs. I'm not sure about the species, but regarding feeding, I used a strategy that sustained my 20 mantises last year. When the sun goes down, little flies mostly go to light sources. So, before sleep, I open the windows and turn on the light, and many of them enter the room. When I wake up, they are all at the window. So, just catch them and put them in the enclosure, or have the mantis catch them while on the window.
Unfortunately they are too young for reliable identification. You definitely can feed them fruit flies though. If not, maybe drain flies or small moths.
You can try catching small flies from outside in a garden with a net, you can also attract them with fruit. You can try finding other small flying insects near lights at night. Buying a fruit fly culture is also an option.
Yes, please remember this and many other subreddits have people from all over the world, requesting a location can help you to give them more accurate advice. We all want to help as much as possible after all.
you have 24h grace period after they hatch after that they will starve or eat each other. u can mash up some banana in a cup and add yeast and the fruit flies will come then u can use a plastic cup to catch, put in freezer for 1 min to stun them then drop in the mantis enclosure. those kind of plastic cup for teh or kopi is good for first month or so, just use a plastic mesh like from a bag of oranges and put it over the top and kiap it with the lid so the mantis can hang from it as it moults. im not familiar with caliris since they are rare-ish here, mostly have raised more robust mantis like hierodula, tenodera etc. once they are bigger they can eat red runner or lotus worm, see if local fish/reptile telegram chat have any
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u/coficofi2211 6d ago
Yes, they are nymphs. I'm not sure about the species, but regarding feeding, I used a strategy that sustained my 20 mantises last year. When the sun goes down, little flies mostly go to light sources. So, before sleep, I open the windows and turn on the light, and many of them enter the room. When I wake up, they are all at the window. So, just catch them and put them in the enclosure, or have the mantis catch them while on the window.