Not exactly a jar! 10g aquarium. I set it up over a yr ago, put in dirt and the Sword plant, as an outworld for an ant colony which promptly died. Heat mat got left on 85° and all of this grew! What should I put in it?

Has an enclosed lid, air is pumped in, has built in water and feeding access. Humidity stays VERY high, I wiped the front glass for the picture.

TBH, Id love an ant colony but after 2 yrs of trying, I give up.