That's really cool seeing your little frogs. I think a 55 gallon would be good or possibly a 75 gallon because that's a lot of frogs. You can use UVB if you want but I think I answered this on my post that it's not as necessary with these frogs if you have the right supplements. It can harm their vision but a T5 or LED light would be good and give a lot of light in the enclosure. Lots of logs and plants would be best and you should have some spots for water because these frogs live near water. You can setup little islands if you want or you can have water areas you can create with bins.

60-78 would be good for these frogs for temperature. They can tolerate colder and warmer but this would be comfortable for them. They like humidity but just like heat these frogs do best with moderate conditions. Around 50-70 humidity is good. Josh's Frogs has a complete tree frogs supplement pack and I'd just use that they are highly recommended by this forum and for good reason. You can Google Tree Frog Supplements and Josh's Frogs should show up. You can use a UVB light if you want. I'd recommend the Exo Terra UVB Compact Light.

Crickets either or both Banded Crickets and European (Pet Store) Crickets are a good staple. Also include in the diet Mealworms, Waxworms, Repti Worms and you can try Isopods and Earthworms. You can let the mealworm get to a beetle stage and feed it and let the waxworm get to be a moth so the frogs can have even more variety.

I hope this helps. Let me know if you need to know more!

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