Made a few changes. Unrelated to them, I almost lost both plants
One of the problems with DWC is water/nute temps, which when too warm it will cause problems due to low DO. So, I did 2 things using things I had on hand (see photos)
* I wrapped the tote in aluminum insulation
* AND, since I am using a F & D tote, which already has a bulkhead, I inserted an o/o valve and put a bottom feed pump in a cooler and drain the nutes into the cooler to which I add a couple blue ice packs, and leave them in the cooler until the temp drops to ~ 65*s, at which point I turn the pump on to re-fill the tote. Once the nutes back into the tote, I close the valve and repeat every ~ 3 hours during lights on
Avoided a Disaster
I can't stress enough the importance of a strong multi-head air pump that has a adjustment valve. This allows for compensating when the water level is either too low, or too high. A week ago it was too high, and I was afraid of soaking the starter cubes, which would lead to root rot. Setting it too low and not enough droplets were splashing into the net pot= no root development. That almost cost me the small plant, which barely had any roots outside the net pot and completely dried out!, whereas the larger plant has roots down into the nutes. When the adjustment was too high it was likely getting too wet and started to get RR. Late yesterday I noticed some browning and wilted leaves. Last night I took it out and soaked it in ~ 5% H2O2 for ~ 15 minutes. This morning she's perked right back up, as has the small one
hth
