Jelly-like Substance in Water

[CinnamonPearl]

I set up my vivarium a while ago and added water. There are no frogs in the vivarium currently.A lot of the water has evaporated now, but there's some weird clear jelly-like substance on the surface of the water. Is it safe, or should I remove it?

[Mentat]

Jelly like substance could be a result of bacterial growth feeding off organic matter. Why let water evaporate? Need more information describing your vivarium (when set-up, what type, what it contains, etc.) and a picture of it to figure out what is going on.

[CinnamonPearl]

It was set up 3-4 weeks ago. It's the half-water-half-land kind, but it's more 60% water and 40% land. The land part has one inch of gravel and two inches of eco earth, and the water side has an inch of gravel and a large rock that acts as a ramp so the frogs can climb out. The only live things in it so far are two philodendron plants that were added today. I let the water evaporate because I added it when I first set it up out of impatience and excitement, but since I don't have any frogs for now I decided to let it evaporate. I'll provide a picture, but the jelly-like substance probably won't show up.

[Mentat]

Letting water evaporate probably had to do with it. Make sure any future frogs in there can't swallow the gravel (bad impaction risk).

[CinnamonPearl]

So the jelly stuff is safe?