Would this be ok?

[Owler]

I reared Temporaria tadpoles last year and re-introduced as froglets at around 3 months.
You will need a horizontal 10 gallon tank per 30 tadpoles, feed them fish flakes - I used bacon fat dangled in with cotton thread quite a lot.
You will need to make VERY sure that you have a GRADUAL slope for them to get out of, they have terrible strength and water navigating skills and will drown. They will not climb up rocks or rather anything unless it has a 10% gradient.

Please consider releasing them to where you got the spawn when they have grown, although it's not illegal to take spawn it bloody well should be as our frog populations are in massive decline.
Do not re-release into anywhere except where you found them, red-leg is rife in these frogs and you will help spread it.

Just remember - 60% humidity - 21c and you'll be sorted.