new to fire bellied toads

[alane]

I'm unsure why so much condensation.
My water temperature (74F) is above my room air temperature and there's not much ventilation. I'm also sort of over-oxygenating and over-filtering the water. And the artificial fern is serving as a big evaporation surface area.
I figure the frogs like it that way and I should just squeegee it down when i want photos.
or maybe some folks have some suggestions as to how to reduce condensation.

[edit] i 'cracked' the hood and offset it so that there's a little 1/8" gap now. The condensation is going away it seems. Or it's an atmospheric thing that comes and goes; time will tell.