Hi Cocinerco
New vivs will go through a molding stage but should slowly disappear over time. Some wood definitely molds over pretty back compard to others and its probably a good thing you took out the grapevine if it molding pretty bad.
Usually a small amount of mold is not much of an issue for the frogs unless they are spending a lot of time on the mold itself.

Yeah, force feeding is really tough. You can blend up some earth worms and add in small amounts of calcium and try feeding that with a syringe. I have seen some other blended items used also, like the crickets and innards from meal and superworms. Since it is more a liquid form it is easier to swallow and digest for the frog.

You mentioned the one female is closing her eyes occasionally and was wondering if your using a light at night to view them. Most peoples Red Eyes need total darkness at night and I have seen with mine that even the light from the computer screen near the tank will cause them to close their eyes. Sometimes I can use a flashlight to direct only the outer edge of the light on them and have them not close their eyes but any direct light will.