My Tiger Bark Ficus Bonsai is starting to wilt! His poor trunk is all skinny and his healthy leaves are turning dark and curling up, they're still soft but they drop easily.. any advice??

Please provide us with a picture.

besides pictures, tell us what you have done different the last weeks compared to before.

His poor trunk is so skinny now, I've invested in a plant light as of tonight. The only change I made was I noticed him being a bit dry last week and gave him some extra water... It's my first time with a bonsai and really don't want to lose him!