Nute and lighting questions

[Mrs. Greenjeans]

How soon after flushing should I give nutes?
I have a 400w hps in a space about 4 square feet, with 4 plants. It's 12 inches from the tops of the plants. Is this too close?


Thank you muchly!
Mrs. G

[Scarlet Sky]

1) depends on why you flushed. i give a light feed to scheduled flushed plants, 1/4 strength. if flushing for toxicity reasons, i'd say no.

2) if you don't have any heat probs (ie cool tube) you should be ok, though i would start off at 2 ft and work them down an inch a day. in a week, you'll be at a foot (those buggers WILL do some growing!) and you can just keep raising until the end of the stretch.

Sky :abduct:

[Mrs. Greenjeans]

This would be a scheduled flushing. I like to do it every 2-3 weeks, just on general principle.

I'm having huge heat problems. The ambient room temp is 80F, and the temp at canopy level is 84-86F. I have to open the window in my room and freeze myself to death to keep my closet sufficiently cool at canopy level. I read in HT Mag that I don't need as much light as I'm using. So I thought maybe it would be okay to raise it to help with canopy temps. I mean, my light puts out 50 thousand+ lumens. For 4 plants. I could probably raise it and still get sufficient light. I'm just trying to avoid them stretching.

[KL4D4]

Get a fan and have it blow the heat from the lamps away and you'd be set or get a little ventilation going.

[Mrs. Greenjeans]

I've got a large floor fan blowing up toward my plants, a double fan blowing across my plants, an intake fan near the floor pulling in fresh cold air, and an exhaust fan farther up that moves 92cfm. And my closet door is open.

I'm having these temp issues even with all this air moving. I need to dig up that cool tube tut.

[Tomthehippie]

move the air intake fan to the top of the cupboard, cut a new hole and convert it into an outlet fan. Ul have twice the cfm rate. :)