I have attached a few images of one of my seedlings. I just pulled the domes off of two of my plants and noticed one of them had some white fuzz on the top of one of its fan leaves and I think also on one of the cotyledons as well. This wasn’t there yesterday. The humidity of the tent has stayed around 70% and temp has remained steady between 70-75F. I don’t have any way to tell the humidity inside the dome, could it have have remained too high and caused mold to grow? If so, is there anything I can do about this? I couldn’t for the life of me get the camera to focus entirely on the leaves so I hope there are enough details in these images to be able to tell what’s going on.
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Looks like a bit of cobweb mold. Give her a little spray with peroxide and it will kill the mold immediately.
Be careful to not overwater. You soil looks wet and waterings should be measured in ml at this point.
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I’ve been trying to be diligent about how much I’m watering. What you see there is the area contained under the dome, it stays moist for quite a while. The soils around it is pretty dry. I don’t water under the dome at all. Just give each plant about 1-2 shot glasses worth of water every other day or so around the perimeter of the dome.
Should I dilute the peroxide with water at all or just go straight? Also, should I still be using the domes at this stage in the grow (they are just paint can liners flipped up side down so there no ventilation, I could cut holes in them though if needed)?
Dilute the peroxide with water. Never use straight peroxide. 1ml to 50ml with 3% store bought 3%. I use 12% but I grow hydro @domdommdommm . It shouldn’t need a dome at this point. Cut off the molded leave and rock on. She’ll be fine if you take care of her. Good luck
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Just spray inside of dome. No need to water that much. What @MidwestGuy said about mold.