Algae prevention
I have no idea if this is novel, but it has worked in this particular situation, so I thought I'd share:
I have a cylindrical glass vase, 8" diameter x 12" tall, that I use to house a few mini's - mounted Phalaenopsis parishii and Schoenorchis fragrans, plus potted Lepanthopsis astrophora and Paphiopedilum helenae.
The bottom has about 2" of LECA to wick water and provide humidity. The potted plants are sitting on a piece of plastic to keep them off the LECA.
Always in the past, algae grows in the standing water at the bottom. No big deal, but it looks bad. But not any more!
I just added a teaspoon of Dawn liquid dishwashing detergent to the vase, dropped in the LECA and added the water (gently, to avoid foam). It has been 3 months with no algae, so far.
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