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Posted 1w ago by @Orked

Is this okay?
I'm propagating alocasia from corms in perlite and one of them has some kind of moss blooming around it. Should I do anything about it? Will it affect other corms in the container?
Best Answer
@Orked I'm not too familiar with using Perlite as a substrate, but here is some information I found.

https://www.bonsainut.com/threads/how-to-get-rid-of-green-algae-developing-on-tops-of-perlite-substrate.30573/#:~:text=Perlite%20is%20made%20out%20of,or%20turning%20your%20soil%20anaerobic.

Perlite is made out of silicium, and it refracts light in a certain way. This allows moss, algae and even cyanobacteria to thrive. Since they use very little nutrients, and break down into organic food for the microbiome, I see no reason to get rid of algae. Unless they're blocking water or turning your soil anaerobic.
@melodey great info! Thanks so much!

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