No problems so far, I germinated my seeds using the paper towel method then put them in some rapid rooters. Transplanted to smart pots as soon as true leaves began to form.
Have been feeding my plants plain RO water and last watering I added calmag at 50ppm.
The plants have been growing great except the three bigger plants have tip burn from either the soil or calmag. They should be fine though, I'm going to start adding calmag every other watering and ramp it up as they get older.