I think it would be better to put them in the large pond at this point, unless your willing to take care of them for the rest of their lives. It is a lot of work and expensive raising froglets and you have to read for hours on how to care of them . Please do what's best for them. The weather is changing and it would give them time to acclimate to their surroundings. Thank you for rescuing them from the pool! The chemicals in a pool can be deadly for frogs. Good luck.