Room Temp Question Related To Pots and Soil ???

[baaka~san]

im currently growing out of a 11x10x9 room. there is one window which i am using for intake for both the room and hoods.

im running 4x1000 watt hortilux bulbs in 6" ducted yeild master II hoods with a 8" eco cooling all 4. for air flow im using s&p fans;a 10" for outake and a 8" for intake. i went with the s&p fans because there the high/low option and me having major sound issues.

anyway, here is my problem/question:

i have my intake coming in via the 8" fan and hepa filter (pix below) and in the general area the air comes out the floor and pots are REALLY cold. I find that the plants in that area take a lot longer to use their water up? I am growing in soil >5 Gal >average is about 28 to 32 inches away from light. average temp is 71 to 77... But sometimes if i dont go to turns the ballasts to 100% leaving at 75%.. maybe 69-70.

mind you that is above the canopy of plants..

i do have a dehumidifier i use when the humidity gets to high.. this also helps with warming the room. average humidity is 58 to 63.

now im not saying the room itself is cold but in that area im just not sure?

 

[baaka~san]

so i went into my room this evening and noticed my humidity was up to 71% the light had just come on so im assuming it was like that a few hours..

like three of my blue cheese ladies were curling upwards and in on itself??? (pix below)

is about 540 cfm with some osculating fans ok in a 11x10x9 room? i recently added the inline fan for intake before this run. during the summer i left the hole open using negative pressure.

any comments or questions for me to better assist would be great.. thanx

 

[baaka~san]

Anyone?????

 

[theweedguy]

I would use a bigger fan your fan should circulate the fan twice every minute your room is 990cf so i would atleast get another fan of the same size my bud uses two 440cfm fans for a 5x5x7 room
The leaves turning up could be a couple things, heat one 0of them and that's not your problem.
The leaves curl upwards like they're praying and they're praying for Mg.
This can be quickly resolved by watering with 1 tablespoon Epsom salts/gallon of water. Until you can correct nutrient lockout, try foliar feeding.

 

[theweedguy]

I still stick with my previous statement about amount of airflow but I just checked on of my old grow books to check and according to jorge cervantes a fan should be able to replace the air every five minutes
your does it in a little under 2 minutes
but its important to remember that bends in the ducting reduce efficiency big time
straight duct -100% eff
30degree curve - 80% eff
45 degree curve - 60% eff
90 degree curve - 40% eff

If you have a bunch of curves and such your only really getting a fraction of the total rated cfm

 

[baaka~san]

I would use a bigger fan your fan should circulate the fan twice every minute your room is 990cf so i would atleast get another fan of the same size my bud uses two 440cfm fans for a 5x5x7 room
The leaves turning up could be a couple things, heat one 0of them and that's not your problem.
The leaves curl upwards like they're praying and they're praying for Mg.
This can be quickly resolved by watering with 1 tablespoon Epsom salts/gallon of water. Until you can correct nutrient lockout, try foliar feeding.

i recently foliar feed some cal-mag and gave them a full dose with there normal feeding schedule: nutes ---> water --->compost tea with 1/4 dose of cal-mag ---> tommorow i will give them nutes again.

the strain is blue cheese and i seem to be watering every 2 to 3 days for the ones closer to the intake?

 

[theweedguy]

im not sure..
you def need more circulation but your already giving mg.. hmm id up to 1/2-3/4 cal-mag your not really at any risk of "overdosing" them
I wish other people would pst some remarks i thought for sure it was mg... it still could be

 

[baaka~san]

im not sure..
you def need more circulation but your already giving mg.. hmm id up to 1/2-3/4 cal-mag your not really at any risk of "overdosing" them
I wish other people would pst some remarks i thought for sure it was mg... it still could be

ur the man..

either way it goes thanx for the info n time

 

[theweedguy]

no problem dude
peace