I believe your onto something there bubba; I would try new clean cubes; or re-boil; then sprout them in the dark; and see if it goes better. I just got a good feeling about that one if they were sitting in sunlight; cause I've seen it here also. I think there's a little bit of an energy curve; and some of the start energy is getting sucked out by (Plantae supergroup)
The green algae are photosynthetic eukaryotes; which could be tapping some of the chemical energy directly out of the seeds themselves.
If shit is popped in the dark; (24-72 hrs) I think everything should be copasetic; the other part is of course; moist; temps and oxygen of course. ie all the normal environmental dials.
So funny
your the clone grand-master; and struggling on the seed front; but such is the order of things.
![Rolling on the floor laughing :rofl: 🤣](https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f923.png)
At $10 a seed; I was really trying to get good at every single pop back in the day.