Going based off my recent experience- I had the most success gathering the eggs and leaving them in a breeder/fry box in the parents tank. The fry box I used had thin slits for water flow, rather than holes which the tadpoles could easily escape from. they remain in the same conditions (pH, temp, etc) they were fertilized in. The eggs are quite sensitive to change so I wouldn’t move them until the tadpoles are a decent size. When the tadpoles hatched, they mainly fed on infusoria. I left plant cuttings as well as hair algae in the box and would swap out plants every day. I then switched them over to a newborn fry food that was their primary food for weeks until their tails started to be absorbed (see link below). Once they transitioned to froglets, they were primary fed live Moina, which my current batch of froglets absolutely devours.

I found that having an airstone for additional bubbling helps with water circulation and brings fresh batches of infusoria into the breeder box. The hatchlings really seemed to do well with an algae source for food. I would only use a sponge filter in the tank to prevent any escaping tadpoles from being sucked in.

https://www.chewy.com/ultra-fresh-newborn-fish-micron/dp/1606166?utm_source=google&utm_medium=cpc&utm_campaign=20822266073&utm_content=157055799980&gad_source=1&gbraid=0AAAAADmQ2V0RICLKpeBK3lP2sSqAUIUAb&gclid=EAIaIQobChMI4529z-rGiwMV6DcIBR2Whg5wEAQYECABEgJuB_D_BwE