Hello, thank you for receiving me

Hello, i am currently owning only one rough skinned newt and i breed Betta and Guppy fish along with having some Goldfish and Cichlid fish, but i use to breed tree and leopard frogs and use to do socializing training with amphibian and reptile species. I hope to get a Leopard Gecko some time.
First of all, i have two questions, my Newt will only eat chopped up earthworms, he wont even eat crickets, but i have noticed he is losing some weight and i know with fish you can put garlic on their food to get rid of any internal parasites, and i was wondering if i can also do that with my Newt.
Second, my Newt is seeming to slow down, and i am wondering does this breed of Newt tend to hibernate? If so what do i do to prepare him for hibernating.
Any other tips about his breed are welcome, i am more familiar with Gecko's and reptiles and fish than Newts.
Thank you,
Cat

Worms are a perfect food for newts, so maybe try feeding him more. I have never heard of the garlic thing.
Newts can slow down when the weather cools.
Good luck with him!