Tent 77F @ 0100 MT
water 68F
EC 1.94
pH 6.4
DLI 35/18
Added 5ml pH down, will check pH this afternoon.
I'm working to bring pH < 6.0 for a couple of weeks then slowly back up to < 6.5. I'll hold DLI for another week then take it to between 45DLI and 55DLI. and hold it there until the last couple or three weeks when I add in 3 hours of UV/day and take DLI back under 30 DLI. EC is slightly below target I expect Sunday's feed will move EC to target or slightly above.
Tent temp stays high during daytime ambient temps and I'm seeing some slight "tacoing" of leaves but there isn't much I can do to bring tent temp down other than a bigger AC unit or less light output.
Water temp is perfect. Last season's grow suffered from high water temps which led to late grow root rot and the plants died before full maturity. Water temp control is the biggest problem with a DWC setup. Because a RDWC system has a central water supply a "water chiller" can be added to the system. Root Rot should not be a problem this year.
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