Red Eyed Tree Frog has eye problem!!!

[pacblu202]

Hey guys, I just set up a large 'Paludarium' type setup that is very unique. I have all live plants in it, 1 marbled gecko, 1 golden gecko, 1 green anole, 1 bahama anole, and 3 red eyed tree frogs. The frogs seem to always be sleeping (yes i know they are nocturnal, but hell, i pretty much am too being a college student.) They pretty much stay on the same leaves. So today I gently woke one up to try and feed him and noticed something was wrong with his eye. I have no clue what is wrong so please help me out here. Im enclosing pictures of all three of them. The other 2 seem like their eyes are okay but might as well show you them all to be safe. Also, It is very hard to tell if they have eatten or are eatting. what is the best way to feed them and best food. Ive been trying crickets but just am not sure. Its hard to individually feed them all seeing as its such a big tank i have no clue where they all are half the time.

Tank Stats: 70-72 degrees all the time, with humidity ranging between 75-85% when i mist it and for a little while after otherwise its no lower than 50%. (its hard to tell what the humidity is in different parts because i only have one hygrometer. there is a waterfall underneath where the frogs usually are so its much more humid there, usually steady at 65+. I mist it when i go past it and notice the humidity is low at all. I usually use the tank water as it is chlorinated and filtered. ( I get it coming out of the waterfall which is the return of the filter) and the mister i have which i manually have to spray is tap water with the dechlor/detoxify in it.

Pictures 1-3 - are of the one that has something wrong. Its his left eye.
Picture 4 - one of the other frogs and it looks like he has a pimple on his nose, Ive read that that has to do with him rubbing on stuff? it was like that when i got him maybe a little bigger now. his left eye seems slightly discolored to me.
picture 5 - the last guy, same thing with the nose and his left eye looks slightly discolored to me too.
Picture 6 - the setup. its 6ft long 2ft tall and 2ft deep.