Welcome to the forum and to frogging.the set up is fine. It's called a false bottom and needs to be drained from time to time. Please tell me they gave you care instructions to go along with the frogs? You will definitely need more than one fruit fly culture to start with.
As for the frogs, sadly, pics won't show the subtleties of the colors, but they do appear to be the same species.![]()
If you are planning on breeding them, you are gonna need a bunch of tadpole supplies. There are a couple threads on raising dart tads in the dart forums.
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