So I have 3 blue gelato 41's and 1 peyote critical on the go atm. Peyote critical is bottom left and worst looking. I usually have this issue in early veg but when I switch to flower the plants generally look much better.
A little background info. Seeds were started 31st dec in rockwool and only given non PH'd water for the first 3 days. I then mixed nutrients at 0.4 EC and 5.6 PH (Using ferro regional as I have used the past 10 or more grows)
Temps have been a little cold lights off 18c (fixed that over the last 3 days so it's now at 22c off 26-27c on Humidity has been around 40-50% but has dropped as low as 30% at one point.
It looks to me as if they are being overwatered but given they are in rockwool and pebbles I doubt this to be the case as for the past few days I only water them twice per day, once at 5pm and again at 5-6am with 300ml and they still look a bit droopy.
Light cycle is 18 on 6 off.
It puzzles me as you can clearly see the back right gelato looks nice but the others not so much even though they are being fed the exact same and are in the same room. Any help or suggestions appreciated.
(edit) Alos should point out I'm using a 600w mixed spectrum HPS although they were started under fluro while they sprouted
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