:wall::wall:once more into the breach. it is just not accurate to say that because you "put the CFL closer mean you can use more lumens". you have the cause and effect mixed up - the fact that the cfl has so few lumens means that you have to keep it close to get a decent lumens per square...
actually there's not. light does not decay with distance, it spreads. the lumens don't go down, the lumens delivered per square foot go down by (1/distance squared) as you move away from any light source, hps or cfl. a cfl starts with so few lumens that to get to a decent lumens per square...
thc degrades in light - do you really want to find out how much? in a pinch i've made a temp tent inside my flowering room with blankets to have a dark space. and you do not want to dry your buds without a carbon filter unless you want company.
here's an ac calculator http://www.consumerreports.org/cro/a...heet/index.htm that sizes a/c by all relevant criteria including wattage of appliances in the room.
you don't need me, you've got it right. for a first grow to know what it's all about, just use both through the whole grow. if you want to maximize yield you want as much light of the correct spectrum as you can afford, fit and cool.
i run two 600 watt air cooled lights, the pane of glass is cool enough to touch, and i keep my plants within 12 inches with a cool flow of co2 enriched air that i am not even venting out of the room. instead i have a closed loop a/c keeping the air in the 70's, and that's plenty low enough to...
no, if that's your air temp you have to work with that. some strains do fine in the 80's - if you want to make it an ongoing hobby it would be worth it to buy some tropical strains.
make sure to get a "two hose" unit that takes outside air into the unit and sends it back outside without mixing with inside air at any time. if you get a one hose system it draws in room air and sends half of it out to the rest of the world. not the best plan.
actually, it depends on the type of airconditioner. i'm more familiar with portable ac's than window, but in the portable world there are "one hose" and "two hose" systems - the two hose systems have an intake that brings in air from the outside, passes through the ac and then out the other...
not mandatory, but highly advised. you'll need to repot when the plant gets bigger anyway, so its really no big deal. and no, you're stuck with the bark. if you plan on making growing a regular hobby then i'd buy a $10 ph meter and do a little reading here about ph. you could probably get...
can't help you out much without more specifics on your grow - amount of light in particular. your yield will go up directly with the amount of light. double the light and double the yield. your slow growth is probably due to too little light compared to other grows you've seen. from the pic...
you'll be better off if you can get the temps down to the mid seventies. can't tell for sure with your pic resolution, but it looks like it's just maybe starting to show female.
you shouldn't need to have a fan for each light. just enough air flow through the cabinet to carry away the heat. in your situation you actually want to cool the plant, not the lights.
air does absorb radiant heat energy from the sun but air is a relatively transparent medium to infrared radiation, so it's absorbing a small fraction of the total energy. the earth absorbs most of the energy but is so large it acts as a heat sink and doesn't increase in temp much. the same...
as Nukulhedd said, a very little light is ok - the standard i've heard is the equivalent of a crescent moon's light.
after a week of 12/12 is good.
don't add chemicals you don't need. the spots you describe could be anything, verify or you'll be fixing the wrong problem.
high humidity is...