They are much, much happier now back a 1300ppm. 24 hours after getting the ppm back up the leaves are stretching up again, the claw easing off. Much happier for sure.
PH drop started yesterday, brought it back up twice in one day. Today it's pegged right where we want it.
Been really busy in the tent installing a recirculating DWC. Planning on about 8 buckets with about 2.5gal each in them, whatever res i can scrape up (currently a spare cooler holding about 12 gal). Pump out from the res into the buckets, gravity drain from buckets back to res. Intake on each bucket is 3/8, two 1" exhausts on each, and a bubble stone in the bottom. Using the freakin huge 5 gal bucket net pots, which means I need a fucking huge bag of hydroton now. Dont want coir pieces in the lines for this one. No problem using croutons only if I could get ahold of them again. Hydro shop has been unable to get the order in for 2 weeks now. Typical hydro shop duuuhness so far, unless they are waiting for me today in which case i take that back. Mostly.
Two buckets built and running in the tent with veg sauce, same as what they were getting in the veg cab but made in a large batch. Didn't even PH test it or anything, will do that today just to say I did. Bet it would be fine even if I didn't.
http://www.thcfarmer.com/forums/f131/doubleds-med-patient-bucket-diy-mpb-buckets-7883/
This is the inspiration. Take the buckets, put them into individual totes and increase the flow. This has got to be the craziest setup I have ever seen, a great read. Dude pulls 3 - 4.5lbs per plant.
All plants healthy. Gnats not seen anywhere. I used aluminum foil and metal tape to cover all the netpots, should have done this from the start, and I will from now on. It would have prevented this completely without a drop of insecticide anything.
No sign of aphids either. They will get another treatment of azamax tonight or tomorrow, but nothing nearly as intense as the hot tub. Repotting two SFVs into the buckets, it's a wonder they are alive at all. It really killed the roots. The surviving plants are the ones which extended new roots quickly enough.
Really need to spring for a low profile res. Gonna have to be the next upgrade in the tent once the buckets are basically setup.