this post was submitted on 12 Feb 2025
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Spirulina

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My first Grow (lemmy.world)
submitted 3 weeks ago* (last edited 3 weeks ago) by Chocrates to c/spirulina
 

Bought the culture and starter medium from Amazon. I didn't dechlorinate my tap water so the first batch of culture I added yellowed and presumably died. Eventually the chlorine evaporated and subsequent additions seemed to take.

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[–] Chocrates 1 points 2 weeks ago

The temperature in my apt dropped to 55degres over night. Just bought a heater but hope they are still alive

[–] Chocrates 1 points 3 weeks ago

I'll get a picture soon. I can't upload for some reason

[–] Chocrates 1 points 2 weeks ago (1 children)

Anyone know a way to increase the concentration of CO2 going into the bioreactor? I know there are Oxygen Concentrators, but it appears that CO2 has no such luck. I guess that makes sense the whole problem with CO2 is that it is pretty non reactive.

I know I could buy a CO2 cartridge but I'd prefer a renewable resource that pulls it out of the air.

I think that means I just need to get more air into the reactor.

[–] Chocrates 1 points 2 weeks ago

New idea on this one. Use the exhaust gas from an O2 concentrator or a Nitrogen concentrator as input I to the bioreactor.

Theoretically, the exhaust gas from the concentrator had the Oxygen or Nitrogen mostly stripped out, so the percent of CO2 might be higher.