Vicki Im so sorry he didn't make it. ....but you're not out of the woods yet because you have two other frogs to care for. Now...you mentioned that another frog died two weeks ago...do you know what happened to him? We need to carefully go over your husbandry practices and make sure the needs of the frogs are being met. Im going to ask some questions and its important that they all be answered honestly so that we can come up with the best plan to make sure the two remaining red eyes don't get sick and are cared for properly. Also please look over the Red Eye care article on the left.
1. How long have you had your frogs?
2. Where did you buy them from?
3. Are they captive bred or wild caught?
4. Were they acting normal when you first got them?
5. Have they been eating and pooping?
6. What food and what size food are you feeding them?
7. Are you dusting the food with vitamin and calcium supplements?
8. What temp are you keeping them at?
9. What humidity are you keeping them at and what are you using to monitor it?
10. We need to see a picture of you enclosure if you can post that for us.
11. What type of water are you using in the water dish and how often do you change it?
12. What kind of substrate are you using?
13. What type of lighting?
14. Are you using anything for heating?
15. What type of lid does the enclosure have?
Ventilation is very important with tree frogs and lack of ventilation or a constantly wet environment can lead to bacterial infections. Let's try and figure out what's going on. Once you've got the husbandry skills down pat you will find Red Eyes are really easy to care for. I look forward to your responses.