Congrats on getting the new tank. That alone should allow you so see some improvement.
If you are looking for roaches, check te for sale section on this forum and you will find many great deals. Sometimes people wind up with more than they need and will sell some off at a really great price
I would also try giving the dragons hot baths since mealworns are being fed. IME mealworms can be hard for younger dragons to digest and the warm baths can really help hydrate and warm up those enzymes to speed up and aid in the digestion of the bugs.
If you are looking for roaches, check te for sale section on this forum and you will find many great deals. Sometimes people wind up with more than they need and will sell some off at a really great price
I would also try giving the dragons hot baths since mealworns are being fed. IME mealworms can be hard for younger dragons to digest and the warm baths can really help hydrate and warm up those enzymes to speed up and aid in the digestion of the bugs.