That was goona be my next qestion, the room i got all my plants in has only a blackout sheet as the door' and i remember something saying that if u had under 20 plants in a smallish space you wont need any extraction fans, i got a small fan blowing up at the leaves coz i think that where plants take in air? my temp's are in between 71-76f, humidity 49-56 in day time plus till the lights go out, then went i put them on the humidity is about 60% and temps are 19c, i got a therma hygrometer.Ha, after all the work I put into the ducting and cooling of this light, I'm hoping that throwing another clip-on at it would be superfluous. One of the fans is already mixing it up around the tops anyway. I've been real conscious about air-flow as my tent is semi-outdoors and it's generally pretty humid up in the Pac-NW. My tent's humidity has been hovering between 55% and 60%, though I've got that down to 50% now, which is hopefully okay for the time being. I know it's not ideal though, given that the plants are likely over-watered.
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lol how bigs your dick then m8 loool, ive got a 600 in the powerplant cooltube 6" from my plants + ive only got 4 foot head room so you should be able to put yours in that size room,get a cooltube b4 you go to cflsSorry im the dumb fuck, its time i give up gessing hieghts coz i suck suck suckkkkkkkkkkkkkk at it LOL
I just got the tap out and went back off it and its only about just over a foot.
firstly I have a fan blowing over the bulb the whole time it's on and secondly I have a super-spreader which I think makes a pretty big difference. Even without a super-spreader you should be able to cool your light down so you can have you plants 2-3ft away no probs.Tell me your secrets, coz i put a 600w hps about 2 foot away from my plants the other day and it bruned the hell out of the tops of my plants, i moved it to 3 foot and it still done it. i put them back under flors and cfl's coz theres no way i can stop the heat. ive been thinking about putting a sheet of glass over the top of the plants and see if that helps.
Plants are currently on 12/12. They're about 10 days into 12/12, or about 6 weeks total. I haven't checked RH at lights out, but I'll note it tonight. Plants don't look wet in the morning, but I'll be sure to look for this tomorrow. I try to water every three days (give or take) or when the plants begin to droop a bit. The last time I watered was about two days ago, though I didn't have enough water to give them a full water-till-20%-runoff. It was probably about enough to give each plant a half gallon. Soil still feels slightly moist about 1.5-2 inches down. The drooping began about three days ago, then gave them the previously mentioned water, now it's been about two days.What is your light schedule? How old are these plants? Have you measured RH at lights out? When lights come on are your plants wet from transpiring? How often do you water? When did you notice the drooping?
Sorry bout the reply' i only got a small fan blowing up at them, like i said with the open door thing i didnt know what i needed. the room i got them in is really close to a window i open all day long and that puts the temp's and humidity down abit. i also got a cloakroom dehumidifer and say's something about it being 30c, so i dont know if its got to be that hot before it starts sucking the water out of the air?have you got a fan blowing across the tops of your plants skunkworm?
The seedlings are almost 6 weeks old, havn't been fed at all apart from the nutes already in the soil) soil was john inns no.2 potting on compost' im gonna sound really dumb here but is rh something to do with humidity? i was watering when the top 2 inch's of soil had dry'ed out but sparkplug told me to water when the top 5-6cm is dry so im gonna go with that but im used to feeling the pots now and telling when they are lighter. There's no water anywhere or transpiring in the mornings apart from the humidity being 60% and the meter saying its comfortable. i noticed the leafs got abit droopy after i transplant them and gave a good flush, but the pots hardly dry'ed out in 8 days, i flushed coz i saw nute burn on some tips) i didnt transplant them i dug my way around the rootball and most of the roots and manage to end up with a sort of tube of soil with the plant sticking out of, anyway i put that to one side while i put more drainage holes and changed the soil for a soil that said safe for cuttings so i thought well it shouldnt burn a 5-6 week old plant that havnt been fed at all yet, im hoping it will be ok but only times gonna tell that. northen lights they are, thanks manWhat is your light schedule? How old are these plants? Have you measured RH at lights out? When lights come on are your plants wet from transpiring? How often do you water? When did you notice the drooping?
Is this a danger when your temps hover between 65-70f? My light is attached to a duct system with an in-line fan and I have a couple 6" clip-on fans to circulate air in the tent. I think that air-flow and temps aren't a problem, but I couldn't say about the underdeveloped roots. This is certainly a possibility. I've raised up the light to 15" and adjusted the plants and fans. I'll give it another day and see if they don't perk up before making further changes or thinking about watering.To me it looks more like heat stress brought on by an underdeveloped root system. In which the case the root system has a difficult time supplying enough water to all the foliage. You can scale up the light to reduce the heat or add in more circulation, until your root systems grows to compensate.
Depending on how she looks this morning at lights-on, I'm going to consider this. Yesterday I raised the lights, increased airflow and lowered RH to about 40%. Hopefully this will have helped the situation.use a flush it aint me who gave me the idea it was a grower called beansly and he sorted the plants roght out had the exact same probs as you..the longer u leave it the worse it will get it aint gunna harm the plants if im wrong ...
Yeah, I plan to be more aware of this in the future. Also started logging my watering/nute schedule. I was being lazy before.let them completely dry out before watering again!!
At that temp it is less likely, but really it can happen at any temp. If you do as suggested and water only after the soil is dry it should correct itself quickly enough. Seems to happen to mine more frequently when I start in large pots instead of scaling up, watering before they need it also contributes.Is this a danger when your temps hover between 65-70f? My light is attached to a duct system with an in-line fan and I have a couple 6" clip-on fans to circulate air in the tent. I think that air-flow and temps aren't a problem, but I couldn't say about the underdeveloped roots. This is certainly a possibility. I've raised up the light to 15" and adjusted the plants and fans. I'll give it another day and see if they don't perk up before making further changes or thinking about watering.