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great! i was thinkin of repotting to a pot twice the size of the current pot, for them to be in for the next 2 weeks while vegging, and then to go in pots 4 x the size of the current ones as they go into flower, what do you think? also was wondering if repotting stresses the plant should i give them chance to settle into the 12/12 regime for a week before i repot to them, or is 12/12 not a stress?
hi, added air inlet and outlet vents to room, and a fan that is very big and powerful, i was planning on putting it on a timer for just 10 mins a day because i was told by the shop it would completely exchange the air in my size of room in just 10 minutes, is this enough or should it be exchange completely more than once a day?
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this is from yesterday, theyre not looking bad, a bit droopier but probably from the heavy flushing/watering, still as yellow but not crispy anymore.
Strange thing is my water out of the tap was pH 7, but with a 0.75ml of fert added to a litre it is pH 7.5, show did the soil end up being brought down to 6.0 if it wasnt my fertz?
fresh air needs to be replaced mulitiple times a day. i would exhaust the room probably every 15 mins. or so. i keep my fan running constantly. read up on ventilation here, you'll find a lot of useful info if you just look around. are you using any additional c02? if not then you can keep your fan on continuously. In an unsealed room, the source of
C02 comes in everytime you exchange air in the room for outside air.
:stoned:hi basement b, my setup is a bit different than most so im not sure if that often of exhausting would apply to my setup? The room my 2 grow areas is in is massive,(the grow areas are curtained off with white sheeting and arent that big compared to the room)
The inlet vent and outlet vent with fan attached are in the space between the two areas so that air is exchanged in this sort of corridoor and then slowly exchanges with the curtained off area.
Wouldnt a large area like this need exhausting alot less often than a small area like a closet grow?
The fan is massive too and the guy in the shop was adamant it would completely exchange all the air completely in my size of room.
Please let me know what you think :stoned:
Your soil most likely went low because of peat content. It's a common problem.
Yes, a big room with few plants needs less exhausting than a small room with big plants, but air flow is ALWAYS good (with the exception of a CO2 enriched sealed room).
Stinky do you think i'll need to ph my soil after every watering from now on? and should i ph test each individual pot or will a result for one reflect the rest?
I suppose it'd be pointless me asking if so many times exhausting would be ok until i told you how big the room is, i'll post a diagram with sizes tomorrow if its ok, i think the fan being on often will cause my temps to drop too low, as its a shed and outside is nippy!
With the new fan and vents, the temp was 24 degrees Celcius on average after the first time the fan was on before hand it was about 30 C. I woulnt be able to add a heater to the room, hopefully when the flower rooms lights are on the temps will fall to a better level maybe
You'll just want to get in the habit of watering with a nute solution at correct p
H for your soil. So if your soil tends to go low, it should be 6.8. If it tends to go high, it should be 6.5 (these are the high low values for being in range). This way, all pots should stay in range. If you see problems on an individual plant, you can deal with it on a case by case basis but now you should be much more stable. Do not let the plants becoem rootbound because then soil chemistry is MUCH harder to control.
thanks i'll keep a check on it, i repotted them all today, i had to take cuttings today as well as its the only chance i had, theyre looking a good green and no new yellowing, the only thing that im really worried about is that theyre all really droopy again.. as bad as they were before the flush?
also it might sound daft but when you take cuttings does a node have to be underground for a cutting to root?
You SHOULD try to strip and sink at least one node. The nodes contain the highest concentration of the cells (undifferentiated cells) that are going to divide into your new roots.
If they are droopy... water them!
the soils still damp an inch down though? the one time they looked perky again was straight after the flush... but maybe my ph is dropping again? i'll check it tomorrow anyways, are there any other causes of droopage?