Thank you for your response!
The plugs came with holes pre-punctured. Before planting the girls, I have further widened/cleared the openings with a q tip. Was that insufficient? Do you mean that I should have created a hole that would go through the plug and open on the other side?
Should I stay from these plugs in the future?
They were sufficiently wet by the way. If anything, I think I overwatered them a little bit. Surprisingly retentive with moisture.
I have my last seed that I have started germinating 2 days ago because I was afraid that the other ones might not make it because until the last moment they were all staying closed except for one. Turned out my room just wasn’t warm enough for them (~75). I cranked up the heat to 80s, and they all sprouted. Now I need to go and buy a plug for the 5th girl (I was only planning on growing 4 originally):
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