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i think your ph is too low. up it to 6.0-6.2. That way the plant can absorb the water beeter. dirt aroung 6.6. lush with straight water for a week and a bit until they start to drink regularly gain and then feed. carefull to pre mix food with water so its diluted before you pour into res as this...

frame your room in with 2x2 and use white poly. buy yourself a zipper and presto instant room and quick to take down room.

sound like its stunted and try to grow to fast. move light further away. less food.

flush with stright water ph to 6.2 ish. you have nitrogen burn , your sucking the water out of the plant its like drinking and being dehydrated and hung over, they need straight water man, like now!!!

yes, in hydro plants are more suppeciable to cold, buy a fish tank warmer to keep water temp consitant. warm enough so you dont feel any temp on the back of hand. 80 dergees farinheight is what i would start at. also hydo system are more prone to fugusis, especuially on farms etc. try a couple...

weeds very hardy. one night not gonna mess the little gurls up. depends on space and height, but i top mine when there about 12 inches tall and the 5 tip leaves pop out. Then i clone that little bitch. but ive been growing for 14 years and you just can tell then. 1st time around take it slow and...

when u crop out ,insect bomb your room, and dip your clones in some pesticide. its a a never ending battle, i just try not to get them in the first place. i use safers pesticide every three days and also spray the floor. i wipe my shades down and take a shower before i work in my rooms.

try spraying them with water everyday, mites hate water and cold.

my buddie went to this system on vancover island and trippled his output. it works and its also alot more work and time....you are doing good. try a complete round room not square, and the plants up high dry out faster that the ones down low. so use lots of air movement.

i like white poly because you can use it to seal your room. my defination of mylar is the thick silver refective material. aluminum foil is too fragile. roll of poly 10X100 is 60$ roll of mylar 5X40 is 80$ but some places you can buy the poly buy the foot. minimal light refective difference...

umm, if they lose 3.5 hours its ok, but dont change there schedule. just let them lose the 3.5 that day and dont try to make up for it. what kind of timer? some are only rated for 600w, buy one for outside as they are more rugged and tend to last longer do to the heat.

white paint or white poly. aluminum expensive and only 10% difference in light.

ballast hum for a number of reasons. they are comprised of layers of steel wrapped with copper wire and laminated. dropping of ballasts,low voltage and heat are killers. the lamination disintegrates and the steel vibrate against its self. Its like a big magnet that is also a transformer...

magnetic balast should last atl east 5 years if not overheated or dropped. ignitors and capaciotrs, bulbs wear out quicker, low voltage in the house like 100v volts also take there toll on electric discharge lighting.:hump:

unplug light, unscrew bulb, bend the little tab in the middle out just a little with a flat blade screw driver. the fire it up and test it out. still have problems check all you electrical connections for the light and including the plug that its plugged into.

yes, but you also have batteries nad calibration solution, i just personal like the dropplets, simple and you follow the directions and you cant fuck up.... growing weed cost money buts it cheaper that buying it.

fan then filter, go buy yourself an air sock, worth the money for shhure!! it will smell like heat because the room is hot, better that reeking like a dead skunk.

take to your local hydro store and get the to calibrate it , i personally like the liquid ph test. it never need calibrating and cost 10$.

suck cool air in from down low. and suck the hot air in from the ceiling opposite the corner you are bring the air in. min a 100cfm fan in and min 400cfm for out , considering your size of room more is better. An oscillating fan in the room to move the air around helps too.

why not try around room and mount rows of plants on the wall with 2 air cooled bulbs in the middle????