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Also please note that it does not look as bad in the 3rd photo. Those light green leaves are actually yellow. Not sure why it shows them darker...

Hey guys. First timer here. Me and my mate got this setup going and about a month ago we ran into some heat problems. After the help from this lovely community we overcame it and were happily cruising in our 4th week(22days) of flower until........ We have yellowing on 1 out of our 4 ladies...

The temps outdoors today are 85....

I have just switched the exhaust and filter to the tent ceiling and the intake at the bottom. We have the exhaust venting into a grill on the wall which is sealed with duct tape so it is getting blown out of the room. I just opened the vent flaps around the base of the tent to see if that helps...

Yes they bow, like they are getting sucked in. The in take is coming straight from outside. We now have a 6" fan pulling air. Only lowered the temp a few degrees. We dont have the cool tubes yet and are trying to sort this out before buying them. Gonna change the exhaust to cieling and intake...

They are Lucalox PSL

Lights are off now and the temps are at 27 cel and 83-84 faren with the lights off. Same as todays outdoors temp. All our readings are from a shaded area. How much of a difference will it make if we swap the intake to ground level and exhaust up high...? My mate is worried about hanging the...

The exhaust is venting into a grill in the wall and out of the actual room...

Ok, so we are have I am presuming heat issues. We have 3(origiannly 4) hps lights for our 4 plants. Turned one off because of the heat issues. We have a 10" exhaust on the floor exhausting straight up out of the tent. The intake is a 6" fan pulling air from a slot in our boarded up window...

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First image is just a 6" intake with no fan. 2nd is the lights and 3rd is the base of tent. The filter and exhaust in the back corner goes straight up and out from the top. Those 4 600's are just way too hot atm so we dropped back to 3. My mate suggested having another 6" intake running from...

They are all in a row. So you mean have the 10x6x10 tee along one side of the hoods and cap at the end of that side. What about the exhaust on the exit of the tubes? Connect with tee's again and just exhaust from a 10" just like the beginning?

So what is your opinion if I only have 1 row of 4 lights? How could I utilize this 10" setup if I incorporate cooltubes?

So should I start at my filter/fan then straight to the cool tubes and zig zag through like an S then straight out the tent all in one stretch of duct? Thats with the reducers? Its a single row by the way. Should I expand back to 10" before I exit the tent or just leave it at 6? Also will this...

Running 4 600w hps lights in my tent just with regular reflectors but am getting high temps. Got a 10 inch exhaust fan pulling the air our but if I have 10" duct how do I incorporate 6" cool tubes into my setup? Do I use an adapter and have the air pulling through the filter, exhaust fan, duct...

I know that is too high. The exhaust is 10 inch and the intake is only 6. The intake is only duct running from the window to the tent. No fan or anything. I just had a feel of the leaves and there is a slight(very slight) crispiness to them so I would put my money on heat being the issue...

Sorry guys. The temps range between 30-33 celcius so its about 90 faren.

Just realized I cant upload photos right now....Will update as soon as I can. Basically some of the leaves are curling upwards. And also on 1 the leaves are clawing at the tips downward...

So in the photos you will see mine and my mates setup. Its in my spare room in a 2.9m x 1.4m tent. We have 4 600w hps lights running 4 plants. 1 for each light. they are just over 2 weeks into veg that came from clones. We are using General Hydro 3 part nutes. We ph and ppm check our nutes...

If you seen this throwing the thread off topic why would you post it? Nothing worse than people hijacking threads when they can easily create a new one or post in a more appropriate thread....