what are thier conditons water ph light ype and how long and nutes? i have some plants a few weeks old and NOWHERE near that big...i dont know what im doing wrong. the are green and all...just not that big.
Conditions are as follows:
Grow room 4x4x7 = 112cf
Temp is kept at 75deg. exhaust fan is run always at 265cfm. Intake fan (which is piped to pull air directly from outside...so air coming in is always fresh) runs constantly as well at 110cfm. This creates a negative pressure room.
And there is also an additional circ. fan in the room as well pointed up at the light blowing the lamp's hot air directly towards the exhaust fan.
water = 15gallons of distilled water, changed weekly
ph = don't even bother monitoring it (haven't seen the need to plants are doing fine and distilled water is completely stable as far as PH and EC, CF, has a low PPM and has no chlorine as it hasn't been treated like your tap water is) and on top of the fact I use 15 gallons of water to 4 plants and change it weekly...my ph won't fluctuate enough to harm the plants in a week.
using 10 to 20 gallons of water was recommended to me for small home growing, for the simple fact that more water that is in your res...the less things can fluctuate in the water. Reason is, if your plants use say 1 gal. of water a day, 1 gal. out of 15 gallons has less impact on your ph and TDS than losing 1 gallon out of 5gallons.
light type = sylvania 400w MH on 24/7 off...never
nutes = I mix fox farm's grow big for 8 gallons of water, cal-mag for 6 gallons of water, and liquid karma for 6 gallons of water....drip system is run all the time at 4gph
and there is (2) air stones in that resivior as well.
Not sure what you are doing wrong if anything at all....but I can say this, I have been told by my local hydro store that I am creating almost perfect conditions for my plants. I.E. plenty of light, fresh air, and no excesive heat or cold.
BUT YOU ALSO NEED TO FACTOR IN THAT WE ARE PROBABLY NOT GROWING THE SAME STRAINS...YOUR STRAINS MAY NOT EVER GROW LIKE THAT NO MATTER WHAT YOU DO RIGHT OR WRONG
HTH