Okay so I have a hibiscus tree that I plan on putting into my chameleons cage, but I have two problems. First, the stem is moldy green and I have no clue how to safely remove it because I doubt it would be a good idea to put a tree with a moldy stem into a wet place like a chameleon cage. And second, I have discovered that there are a lot of ants climbing in the soil of the plant. I read that aphids could be the reason for ants to show up on hibiscus plants, but I cannot find any aphids on the plant anywhere. I hope someone can help me cause I really have no clue when it comes to trees and plants. And I will be using a grow light for the hibiscus.