Ive followed my insrructions, one day feed and one day off for first few days. EC pen arrived, the mix Bulls said to mix up is at 1.2ec bacground ec is.0.7.
I put 3 liters of feed through them yesterday and have refilled my res tonight with a fresh 20 luters of water bubbling away for tomorrow nighht.
Ill await instructions for that feed.
All but one have re vegged. Temps 24-26c constant rh 50%.