Let it grow and see what happens. Many ferns and some mosses form a kind of prothalium-liverwort-like flakes before going through the next stage in developing the fruiting body. It is not pathogenic to anything in your vivarium, including your frogs. Just enjoy and watch what happens next. If it's an algae of some sort, this is also a part of the biological process, as are fungi. While there are indeed pathological molds and other fungi, these are not usually manifested as conspicuous growth in vivariums, or even rain forest floors. If you can see it growing conspicuously, it's harmless, and probably good. You cannot possibly keep a planted vivarium going without encountering various molds, fungi, algae, mushrooms, cropping up. Rather than indicating a problem, they indicate a sound system of biological recycling. Unless a human or animal is immunocompromised, (such as humans with HIV or on immunosuppressants) they aren't susceptible to the everyday fungi we can see. The pathogens, on the other hand, are not as conspicuous, and often difficult to see or even grow on an agar plate and identify. In other words, if it's out there green and flourishing, or running around in strands all over the surface, or shooting up stalks of shrooms, just sit back and enjoy the show.
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Patty

Pahsimeroi, Idaho



4 D. auratus blue

5 D. galactonotus pumpkin orange splash back

5 D. imitator

6 D. leucomelas

4 D. pumilio Bastimentos

4 D. fantasticus

4 P. terribilis

4 D. reticulatus

4 D. castaneoticus

2 D. azureus

4 P vittatus

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