I have reared Argus reed frog tads before. They are easy, just treat as normal tadpoles and keep them at about 25C. Make sure water quality stays good (I use sponge filters, as they aerate, too) and feed on fish flakes, spriulina and, as they get bigger, frozen fish foods like Mysis shrimp.
Remove them from the aquarium as soon as front legs pop through and keep them in a secure tank with shallow water and an easily accessible land area or a sprig of a plant like Pothos. The froglets are incredibly jumpy and tiny, so make sure you have tanks with secure, well ventilated lids. They will take Drosophila hydei and hatchling-1st instar crickets straight away as they cram quite big things into their mouths. Make sure there is plenty of food and that it is gut loaded and dusted, as they grow quickly and eat a lot. Also provide a basking spot, as for the adults; a bit of UVB on the basking spot is probably helpful, too. Make sure they stay quite humid though, and provide a shallow water dish, as they dry out easily as froglets (they can stick to the glass if they are too dry, meaning that they dry out completely and die as they can't move).
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