Here we will review the method of seedling or plant seeds using rockwool planting media to be planted with a hydroponic system. How to seed the seeds or plant seeds with the steps and tips to speed up the seedlingsbold
The following is how seedlings or seedlings are planted with rockwool media.

Prepare Rockwool planting media, cut rockwool like tofu sumedang or around 2.5 x 2.5 x 2.5 cm or adapted to your needs, for dinetpot use, used glasses or other media. Then wet rockwool with enough water, just wet, don't get too wet.
Wet all rockwool that will be used as seedling media, plant media and place it in the tray or in the seedling gully and arrange neatly.
Make a hole in Rockwool using a toothpick or nail or other tools or please adjust to the needs or size of the plant seeds.
Prepare seeds that will be planted sufficiently, take seeds using a toothpick that has been moistened or use tools according to your availability
Enter the seeds / seeds of the plant into the hole that was made in step (3), try not to get too deep into the planting medium, enough on the surface and exposed to wet for the imbalance process. Try to place seeds according to the rockwool fiber, so the roots will easily find a way
Try to make the number of seedling holes adjusted to the size of the plant later if you grow up. For example, for spinach and spinach plants, which tend to be vertical growth, in one rockwool can be made 4-6 seedling holes, for lettuce, mustard greens, pakcoy, siomak which tends to be horizontal or widened in growth, in one rockwool just made 1 seedling hole, or plant with growths in the form of stems and shoots such as chili / chili, paprika, tomatoes, celery, parsley, strawberry, melon and watermelon, only 1 seedling hole is made in one rockwool.
Save the seeds of plants that have been sown in a cool place (away from sunlight), about 1-4 days will see broken seeds / sprouts / shoots (marked in white), long sprouts of seeds depending on the type of plant. If the seeds of the plant have sprouted immediately move to a place that gets sunlight at least 6 hours a day.
After the plant seeds appear about 3 or 4 leaves green, generally around 10-14 days from the seedlings of the plant seeds can be transferred to the hydroponic system that we plan.
Here are a few additional tips on how to successfully plant seeds or seedlings:
To accelerate or stimulate sprouts more quickly, growth stimulants (ZPT), Giberilin Acid (GA3) or red onion water baths can be used.
When the seedlings can be used AB Mix nutrients with concentrated or lower ppm values. for example in the growth period (vegetative) the plant requires a ppm value of about 1000 ppm, then when the seedlings use half ppm or about 500 ppm
Spray the seedlings using a morning and afternoon sprayer to maintain moisture and prevent dryness
Use a transparent or UV plastic lid, to avoid damage to seedlings during the rainy season or exposed to heavy winds.
That is how to seed the seeds or plant seeds, good luck, hopefully Barokah.