Sorry for double posting with you earlier Eli, I get distracted at work and sometimes one post will take me 20+ minutes to type up and then I ended up answering questions already answered!

I don't really notice a problem via the pictures but I have a few pointers.

Firstly, that tank is too small to house mixed species IMO. They might be "fine" but the symptoms you're seeing might be a sign of stress also. Even if you find them in the same environment naturally, they aren't always inches from each other for long periods of time. If you insist on keeping them together, I would definitely get more branches and places for them to hide out in there.

Is the water dish big enough that they can soak in? It's fine for them to drink the water from misting, but sometimes tree frogs enjoy a nice soak, even if it's just for pooping in.

If you never replanted the plant into a frog-safe soil, chances are pretty good that it still contains some sort of pesticides and fertilizers. Something that can really harm your pets. Even with marbles on it to prevent them from getting into it, one of them obviously got in there if he was covered in it. If he's trying to dig in, that could also be a sign of an issue such as improper heating or humidity. It would really help to gt that monitored.

50 watt lightbulb could really be drying out the enclosure too when you're using multiple bulbs on a tank that size. I use a 13-15 watt UVB on a bigger enclosure (along with an LED light that produces no heat.) I use a heat pad on the side of the tank if the temps start dropping too much during the cold winter months.

I would get to monitoring your temps and humidity as soon as you can. Even being slightly out of their range for a longer period of time can cause stress. I would say a vet exam is pretty much required once you have a lethargic frog that is refusing to eat.

You can pretty much follow the care listed here -- Frog Forum - Gray Tree Frog Care and Breeding for green tree frogs, but the anole might require slightly different care, I'm not sure as I haven't owned an anole since I was a child.

Good luck!