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As is yours Mr.Eastwood

Lmao its almost like deja vu

Easy enough to find out. Up your nutes like recommended and keep the watering schedule the same for a few days. Then switch to 2 hr intervals and watch how fast it gets better

Is and isn't. Personally I feel 85F is to much. There are a ton of studies that show optimal growth rates for cannabis are with leaf temps of 75F. Now lights like MH,HPS and CMH all put out varying amounts of IR. A lot of the COB's and QB's do not provide this spectrum without supplementing it...

You can up the feed all you want but if you don't increase your watering frequency its not gonna matter and will only make it worse. With your low RH and temps probably at least 2-3hrs. max between. Still say you will get better growth with an optimal VPD over stretching it for temps for the...

I don't strive to grow in mediocre to poor conditions because it can be done. You want 85F because its optimal for LED grows but everything else doesn't matter? I'm confused as to your logic??? Anyhow seems like your here just to get something going so I'm out

Well I put up my thoughts... by all means take em leave em... apparently mid 80's and 15%RH yields awesome plants.

Ok someone is high... In flood and drain?

So if he is setup with the right temps etc. whats the issue with his plants?

Well by all meas do explain. I have a small room 4 plants at a time.

with 45% humidity in early veg? Have to say not me.

You absolutely right. I grow with an HLG-600 like you no IR. So your leaf temps will prob sit close to 5-6F cooler. But I don't feel you have the humidity to grow with optimum leaf temps (75F) and you may be a little higher than necessary to start with to achieve that (During Veg I sit at 80F...

Yup same principle though. I do sealed so i can run higher Co2 and I just keep a scrubber in the room that my grow box is in... Never smell a dam thing.

Like this? Only this is sealed with Co2 supplementation. Don't mind the mess of cords I was moving shit around at the time

Temp controller something like. https://www.amazon.com/Inkbird-ITC-310T-B-Temperature-Controller-Greenhouse/dp/B0743CK1FN/ref=sr_1_fkmrnull_1?keywords=inkbird+310&qid=1558386541&s=gateway&sr=8-1-fkmrnull Can program day/night temps. Space heater for heating and vented fan for cooling. Plug and...

Yeah but I also think they are not getting enough water. Try flooding every 3 hours and see how that goes. Its only clay pebbles so it drains fast and with those temps I think your drying out your media to fast also add the VPD issue to this and it make sense to me from what i see in the pics...

I'd say with consistent 55F night temps there aren't many strains that won't show nutrient issues with stunted growth and over all unhealthy plants.

Have to say its kinda dependent on the growth type you are getting and the growth type you want. Running LED with with no temp diff and an indica dominant stain is not likely going to be ideal. You will be growing leaves on top of leaves with virtually no node spacing. I think ideal day/night...

^^^

I would drop the temps a bit to compensate for low humidity maybe 75F. They probably look under watered because the increased VPD with a higher temp and lower humidity makes them drink a lot more. So I would say finding that happy spot of flooding a bit more often and lowering the temps bit...