I have a GL60, had her about a year. I've used everything from 2x 85w (165w total) CFLs with shades to a 2ft 8tube (216w) to a 250w CMH. 400 covers more like a 3x3 area so you might actually have too much light in the tent which leads to destruction of chlorophyll (bleaching). I use a air king 6" to exhaust the tent out the top and another to blow under the canopy. I like scrog because the tent is low, although this is my first time flowering anything besides males in it. Previously it was a mother tent. Anyhow if you want any pics of how I have it setup or anything just holla. I'll leave you with one of my screen in the GL60...u might wanna look into the scrog technique.Im thinking about getting a GL60 that will go in a closet, I would love some expercenced opinions! I was just wondering what my options are. I have a 400WHPS for Flowering and im thinking of getting CFL's for Veg. any strains that would thrive in the GL60? anything will help really. thanks!
Use tonic water. You want nothing on ingredient list except carbonated water. Anything else like sugar, ect will harm the plant. If you follow this, no need to rinse it's just plain water and the co2 will off gas to the plants. You will have to spray while the lights are on (they only use CO2 during the day) so you need to raise the lights up a bit to make sure u don't burn them while spraying.
It won't work without a dimable ballast. http://www.htgsupply.com/Product-HTGSupply-250-watt-High-Pressure-Sodium-Grow-Light.asp this is the setup I have for mine. I replaced the bulb with a CMH for better spectrum and added UV-B though.
It's a freebie seed I got from the Tude. Royal Queen Seeds - Blue Mistic. And it's a indica dom so I'm shooting for about 5 oz. Don't be afraid of the scrog lol it's really awesome once you try it you will see just how easy it is...think of it like a grid that allows you to 'set' each branch exactly where you want it. Only thing tough is timing when to flip to 12/12 but it's honestly pretty forgiving.Jeez that looks amazing i want to try SCROG but im scared...lol and damn so i have to buy a whole new system?. ive never herd of CMH ill have too look into them. what Strain? how much do you expect to harvist from this baby
Pics are under the CMH light... HPS is super orange. CMH bulbs run on HPS ballsts though, they are retrofits. Unscrew the hps, pop the CMH in, good to go!
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Pic #2 is my exhaust lol set on high speed. Works surprisingly well and very quiet! Have 2 of the 3 screened squares open on the bottom of the tent for passive intake.Are you using an inline fan to draw air in? Or are you just keeping the tent open? I'm interested because I see no ventilation; I'm wondering how you manage your temps
Your 6 inch fan works well enough to pull the air out? Interesting.
If your making sub's super soil that's organic and all you should feed is h2o.