1. Soak rockwool cubes in dilute nutrient solution before planting seeds 1/4 inch deep. Place cubes in a tray of water until seeds germinate.
2. Protect the drain outlet in the planting bucket from clogging by placing some crushed rock around it.
3. Place cubes with seedlings in the moistened growing medium. Then put the bucket of nutrients into the fill position and allow the medium to fill to approximately 1 inch below the surface.
4. Allow the solution to remain for about 20 minutes, then put the bucket in the drain position. Repeat this three to six times per day.
5. Always keep a lid on the nutrient bucket. Try to keep the nutrient solution pH between 5.8 and 6.5 and the temperature at about 70 degrees, and change the entire solution every two weeks.

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