Nutrients and HPS problem...

so i'm buying a 400 watt HPS light system from the local grow shop and i'm buying a econo-wing reflector for it, i know i'm going to some heat in the closet, to control the heat what should i do? should i have a fan just constantly blowing toward the light or what?

and for the nutrients, i'm buying Fox Farm Big Grow and Tiger Bloom, i need to know if i can use them for a soil grow or not?? if so how much should i mix with water??

also i will have the Fox Farm Ocean Forest Soil, and it says u dont need to use nutrients for about 2-3 weeks??!! should i listen to that or should i gradually give it some nutrients during the seedling stage?!

also how many plants can i have under a 400 watt HPS....

You can use those nutes in soil. Here is the soil feeding schedule

FOX FARMS FEEDING SCHEDULE FOR SOIL


WEEKLY FEEDING- per Gallon
Sprouting and week 1--BigBloom 2TBS
week 2-- 2tsp Grow Big + 2TBS Big Bloom
Week 3--3tsp Grow Big + 2TBS Big Bloom
Week 4--JUST 3 tspGrow Big + 1/4 tsp Open Sesame
Week 5 same as week 4 unless going 12/12--

Week 5- OR--day 1 of 12/12-- 2 tsp Tiger Bloom +1TBS Big Bloom + 1/2 tsp Open Sesame
Week 6--same as above
Week 7-- 2 Tsp Grow Big + 2 tsp Tiger Bloom +1TBS Big Bloom + 1/4 tsp Beastie Bloom
Week 8-- 2Tsp Grow Big + 2 tsp Tiger Bloom +1TBS Big Bloom + 1/2 tsp Beastie Bloom
Week 9-- 2 tsp Tiger Bloom +1TBS Big Bloom + 1/4 tsp Cha Ching
week 10-- Same as above
Week 11--2 tsp Tiger Bloom +1TBS Big Bloom + 1/2 tsp Cha Ching

At beginning of week 11--Check Trichomes-- Flush if ready.. otherwise, continue as with week 11 every week until you flush!


Also recommended--but not a necessity--
Bush Doctor Sledgehammer (prevents lock-out)
use 2 drops per gallon of water between feedings starting in week 4 of 12/12



This info is courtesy of Planetskunk.com

now do i feed it for every watering?!

How big is your closet? I have a 400 HPS in a 2.5 feet X 3 feet X 6 feet and I get 7 good sized plants under my 400.

Hard to say your best way to cool without knowing your setup. I use a 424 watt Vortex with a DIY filter with a fan blowing on my reflector. Only times I ever had heat issues was in the heat of the summer but it was still tolerable.

Give us some more info and we can give ya some ideas.