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By Hedonista
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Joined:  Fri Jan 05, 2024 2:21 pm
#450334
I have several containers that are getting a really bad algae infestation. Most are seeds/seedlings. Should I repot? And should I wipe the seeds off with something if they are big enough, or should I treat the media with something? Until now I’ve grown deserty plants, so this is my first experience with algae.

I also threw in a photo of some moss I don’t know what to do about either.
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By andynorth
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Joined:  Fri May 12, 2023 9:08 pm
#450336
I am not sure others would agree but I always keep a humidity dome over my seeds until after they germinate. I have not had an algae issue as of yet. I also use a mix that is almost all LFSM. I seem to have more luck that way. As for the moss, some people like it but others find it invasive. If it is regular sheet moss and not LFSM I pull it out as it will eventually overtake and smother your plants.
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By optique
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#450337
full sun should kill it.
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By Hedonista
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Joined:  Fri Jan 05, 2024 2:21 pm
#450339
I think I know what caused the algae - the little pots were in dishpans which had sides a couple inches higher than the pots, restricting airflow. I’ve corrected that issue, but I need to know what to do about the algae that has already grown. It’s really bad in some containers. I don’t have the option of full sun for a while either, since our lows are still mostly in the 30s.

I don’t know what kind of moss it is…maybe star moss?
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By andynorth
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#450340
Hedonista wrote: Mon Apr 22, 2024 5:52 pm I think I know what caused the algae - the little pots were in dishpans which had sides a couple inches higher than the pots, restricting airflow. I’ve corrected that issue, but I need to know what to do about the algae that has already grown. It’s really bad in some containers. I don’t have the option of full sun for a while either, since our lows are still mostly in the 30s.

I don’t know what kind of moss it is…maybe star moss?
Do you have grow lights on the seeds? Possibly leave them on longer and water less. If the moss is star moss I believe that is the same as sheet moss which will choke out your plants eventually.
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By Hedonista
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Joined:  Fri Jan 05, 2024 2:21 pm
#450342
andynorth wrote: Mon Apr 22, 2024 5:58 pm Do you have grow lights on the seeds? Possibly leave them on longer and water less. If the moss is star moss I believe that is the same as sheet moss which will choke out your plants eventually.
I have T8 lights on them for 15 hours/day. I will try watering less. And I’ll remove the moss.
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By Hedonista
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#450345
So is there a product to treat the algae that won’t harm my CPs?
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By Intheswamp
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Joined:  Wed May 04, 2022 2:28 pm
#450347
If you haven't already, you might consider one of those clamp-on fans. I've got a couple (5"?) and I run them on low just to cause an air exchange. I don't use them all the time, but I believe they do help. The slight movement cause by the fan also helps strengthen the stems and stalks.
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