Just a quick followup on refining the cloning environment process.

I had a few batches root slowly and coincidentally came across anecdotal evidence of nitrogen slowing rooting performance. I stopped adding nutes to the watering soln, instead just correcting pH to ~5.5-5.8. The last batch done like that popped first roots at 6 days with profuse roots at 10 days. I'll do the next batch the same way and see if I get the same result. Then I'll try it again with a weak vega nute soln (~400ppm) and see if the strike time is slower.

I ran a small circ fan in the clonebox in the coldest months, where the ambient around the clonebox can get down to 10c. This moves some heat off the fluoro ballasts and raises the box to the setpoint of 26-27C. However, this fan caused the cubes to dry out much more quickly, requiring 2x day watering. As spring has come on, I have switched off the circ fan.

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Get a harvest every 2 weeks - A batch of clones in rockwool - Al B. Gone