Hey

individual jars is not a good idea imo, pacmans will produce thousands of tadpoles and so you'd be needing to change these probably serval thousand jars a day. You need a huge amount of space to cater the tadpoles, you'd need large plastic water troughs or paddling pools or loads of aquariums equipped with filters and heaters. You'd also need a lot of frogs and a lot of space, individual plastic storage boxes with heating, lots of food to feed them and you'd probably not be able to breed them for a few years until they mature. Imo unless you wanting to invest a lot of money and space to begin commercial breeding, I'd pick another frog for a project for fun. A good option would be fire bellied toads, they're easy to breed, you can keep them in large groups so won't take up much space and they produce only a few hundred tadpoles

Jason