I had 14 Tutankhamen seeds and i only got 7 full developments. the others rotted and died.
afterwards, make sure your plugs stay moist but not soaked all the time.
i develop a tap root first by putting them in a wet paper towel and then into a ziplock back (to hold the moisture in). Once a tap root is developed, i place them root-down carefully into the plugs about 1/4" down. Then i break off a tiny piece from the corner of the plug and gently stuff the hole [you put the seed in] so that no light gets to it. Depending on how strong the seed is from the beginning will determine if it continues it’s life cycle.
If you used the starter tray that comes wrapped in the plastic, i might suggest using a hair dryer to the sides of the tray to bring the ‘bow’ out of them so when you use a humidity dome, the moisture doesn’t leak out and takes longer for the seedlings to mature.
Surprisingly, the really cheap paper towels work the best because the seeds and roots lay on top without getting stuck to anything. This is important. The more expensive “cloth-like” paper towels (like Viva brand) aren’t good for germination because the roots actually grow into them instead of laying on top.
Seeds often germinate at different rates even if they get the exact same conditions
Here’s a picture showing several healthy and viable cannabis seeds
More seedling resources
If the medium is drying in less than 2 days, it means you need to give more water to the plant at a time, or possibly transplant to a bigger container if the plant has outgrown its current one.
If new seedlings are showing signs of stress, try moving the lights further away and see if that helps.
Assume all dark seeds are viable, even if seeds can be crushed
By planting young seeds in a small container with holes in the bottom, the growing medium will dry out much more quickly, allowing you to water more often. The young cannabis will get plenty of oxygen and water.
How to Plant Your Germinated Cannabis Seeds
The reason you want to start with a small container is that your plant’s young roots thrive on oxygen. Cannabis plant roots “breathe” oxygen, just like we breathe air, and it’s important that young cannabis roots get plenty of oxygen so the plant can grow as fast as possible.
Basically, you want to make sure any seeds or sprouts are kept warm and moist at all times, that their roots are unexposed to light, and that they get planted right away.
This is one of the easiest germination methods and doesn’t leave a lot of room for error. Cannabis seeds and clones can be expensive, and sometimes we have genetics we just can’t afford to lose. When that’s the case, germinate your cannabis with one of the following recommended options to ensure as close to 100% germination rate as possible.
During the first few weeks of a young marijuana plant’s life, you have to be careful.