HELP! Gray tree from bloated with air

[HappyShoes91]

Hello. New posterhere. Played with frogs and toads outside my whole life, been keeping them aspets for about two years now. I’ve triedgoogling and reading all kinds of articles but am still at a loss for what todo here. One of my tanks contains twogray tree frogs. Both of which werecaught in my backyard as tadpoles last summer. They’ve been actual frogs for 4-5 months now. The problem is with the littler of thetwo.
Last week, Sunday, I noticed he was staying on the bottom ofthe tank (normally climbing) and kind of bloated. The bloating has gone up and down a bit butrecently he’s maintained his bloat and it seems to consist of air. Based on what I read, I originally thought hehad metabolic bone disease or some kind of calcium deficiency because his fingerslooked broken. I upped his calciumintake and added a UV bulb which seems to have done something because he isstill alive and moving. I read thatfrogs of his condition usually don’t get better because the MBD was caught toolate. But he’s still alive. The only thing that seems to have worsened isthe air bloating. Long story short, I’mnot sure if this is a calcium thing and if not, I have no idea what it is orhow to treat it.
Quick Factson Behavior:

• Cannot climb but still tries.
• When he tries, he gets himself on the wall,tries to move a hand and falls down (maybe a few centimeters in height)
• When he falls, he sometimes lands on his backbut can easily flip himself over
• Has trouble hunting but I make sure I see himcatch something everyday
• Posture is lower (like that crawling positionand not the normal sitting position)
• Still hops a decent distance
• Soaks more than usual but not excessively
• Just recently shed a layer of skin

QUESTIONS
1. Gray Tree Frog (not sure which kind, but I think versicolor)
2. & 3. Will attempt to attachphotos next
4. Enclosure = 12x12x18
5. & 6. One other tank mate, yes size difference, same species
7. No new tank mates
8. Humidity = 30-40 (lowered due to recently discovered white fuzzy whispy moldlooking substance)
9. Temperature = 60-70
10. Heat lamp for night time heat maintenance, UV and incandescent bulb fordaytime heat
11. Lighting = 13w UVB bulb/60w incandescent bulb in the day…purple heat lampat night
12. Change water every day to every few days because it evaporates quickly,cleaned every 2-6 weeks depending on how it looks/smells
13. Water = distilled for misting, tap water (well water/no chlorine) forsoaking dish
14. Substrate = one of those green tank carpet things, can’t remember the brand
15. Enclosure setup = background on outside of tank, two ground level fakeplants, one fake plant suction cupped to the wall, all plants are plastic. Plastic soaking dish, two backyard rocks (notrecent additions), one long stick that came with the tank (used for two monthsnow), three sticks from my backyard (all of which I have used for a long time,not new to the tank
16. Saw frog eat last night
17. yes
18. There are always some fruit flies in the tank. They eat when they want to
19. Fed dros hydei fruit flies, feeders roam free in tank
24. Calcium = tetrafauna reptocal
25. Yes, frog w/o calcium for period of time
26. 4-5 months old frog
27. Owned since tadpole
28---who cared for the frog before you = nature
29. The frog was a wild caught tadpole
30. Frog handled only when tank cleaned, more recently because he’s sick
31. tank in low traffic area
30. Had frog quarantined but gave in to his sad little face and reintroducedhim to the tank because he didn’t seem to develop communicable symptoms
32. Not treated with any medication