What should i do if my crested geckos have wavey tails. And how can i make there tails become normal again?

Visit Jungle Bobs and ask ANYONE behind a counter

He needs calcium asap. Most likely a vet visit as well.

If it just became wavy she could be low on calcium.

I live about an hour away and im only 15.

I agree . Go in and talk to anyone at Jungle Bob's. Everyone has always been helpful