I used Fox Farms too....I mixed Ocean Forest and Happy Frog 50/50...and had the same problem at first. Very hot, PH run off was in the 5's....after chasing it around for weeks by using PH up, I "think" things finally resolved themselves as my girls got bigger and needed more nutes...
I also noticed that the reaction was pretty strain specific too...my Blueberry was not happy, while White Rhino and Northern Light Blue were fine...
Wow folks. That for great feedback. Funny I just had similar yellowing of new colas w pure coco. I used some cal mad with aqua clear to flush and one does look a little better.. So I may lean towards nutes but I will ph run off to check that also.
Disclaimer: I still use HID and I'm NOT an LED expert. All of my LED knowledge is from other parties or research so I can't say from first hand experience one way or another. I also run a medical grow consulting business in SoCal.
Yes there is improvement. Heat the issue now. Doing what I can to avoid ac cause at .45 cents a kWh it's a killer. Any suggestions ? Got a 4" intec removing air and small fan blowing on plants. Even flowering 6p-6 a running about 85 degrees Any ideas or ventillation would be great. Also portable ac recommendations as what I read is not favorable
anyway to upgrade to a 6" inline fan. it moves way more air than a 4". i also noticed in the room that it looks like you are using the reflective but insulated bubblewrap on the walls. flat white paint is cheap and it's not much different from reflective stuff. or panda film (black&white) is pretty cheap too. not sure how much it would make a difference but might help a bit.
could also go portable swamp/evap cooler. only draws like a 100 watts and will cool pretty decently but will raise humiditiy.
If the ambient air outside of the grow room is cool enough then all you need is a large enough exhaust/intake/fan for the grow room. AC is the easiest way but it's not cheap. If the whole house is too hot then AC is one of the few options. Swamp coolers are OK if you need humidity but not if you have enough or too much already.
If you DO go with a portable AC, splurge and get one with separate intake/exhaust hoses or, even better, get a mini-split if you can.
Disclaimer: I still use HID and I'm NOT an LED expert. All of my LED knowledge is from other parties or research so I can't say from first hand experience one way or another. I also run a medical grow consulting business in SoCal.
I think that the dual hose (one intake - one exhaust) portable AC units wouldn't need any odor control, for itself, if it has a recirculation setting.
Mini-split units are even better because the condenser and evaporator are separate. The minisplit is overkill for a small tent but if you need to cool a whole room (large tent) and you can put a hole in a wall, the minisplit systems work really well at a high but decent cost for what you get. If you can self-install, you save.
Disclaimer: I still use HID and I'm NOT an LED expert. All of my LED knowledge is from other parties or research so I can't say from first hand experience one way or another. I also run a medical grow consulting business in SoCal.