Last summer my sisters and I raised some tadpoles and kept a few once they turned into froglets. They will be froglets for one year this August. My question is, how long does it take for them to be fully grown? They really haven't grown much over the past eight months and I don't know if that is normal or not. Also, we have been using an old fish tank to keep them in and I was wondering if it will be big enough for four adults. It is 24 inches long, 17 inches high, and 12 inches wide.

Here are some pictures of what they look like now:
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