Bad start! First time using rfx-1, have to adjust the watering schedule.
Problems:
1. Overwatered
2. Overfed
3. Water temperature too high: 23° with lamp @ 100%
Things I changed:
1. Started hand watering for a week
2. Started using the black (slow) drippers, in stead of the blue ones (heavy flow), 4 feedings of 15m a day.
3. Added an air pump to keep water temperature down.