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are there any desired effects of having the ph at either threshold of the spectrum, 5.8 and 6.8?In other words, what positive effects manifest from slightly more acid water over alkaline, and vice versa?

good point. my temps at 91 degrees f. should i turn off the lamp for the next few days till my digital ballast comes in the mail? i don't want to stunt the ladies. 1. the ballast is already outside of the grow. 2. i can't pierce a whole through the roof but i can shorten the exhaust to the...

let me state the relevant schematics to my grow room to better understand my situation. i have a closet space which i've managed to convert into half veg area and half flowering area. the flowering room is 52inx 24inx 8 ft. i have a 6inch duct running from left to right, bottom to top to bottom...

thanks for the advice. it makes sense now.

is topping a 2ftx4ft sea-of-green a good idea? why or why not? any recommended methods of boosting the amount of yield?

great, thanks for all the suggestions. i'm going with (2)lumatek 1000w digital ballast for my two 18 (12in) plants SOG. i'll let you all know how it goes in two months.

i'm going to replace my 1000w ballast and buy two brand new digital 1000w dual (hps/mh)ballasts - to be able to use a hortilux super blue bulb. does any one recommend a brand, or online stores. your thoughts are greatly appreciated.

good story seasmoke. i discovered the bulb was defective. or at least, about to become defective - burnt out. i came home to follow the plan listed above and to my surprise and joy, the bulb burnt out seconds after i plugged the ballast in to test. i'm glad it's just the bulb. my ballast is a...

is there any way to avoid the varience? i can't have the lights go out, especially when i'm not home. thanks for the advice, by the way.

thanks for the suggestion. i'll try it when i get home for work.honestly, i'm kinda ashamed to say i overlooked all the troubleshooting steps. i automatically assumed the ballast pooped out on me. regardless, i'm taking it in to my local hydroponic dealer to see what's up. i can't have this...

i bought the ballast from some guy on craigslist. i know i know. serves me right. i'm considering just buying (2) 400 watt ballast, bulb, and lamp instead of (1) 1000 watt set up. i have my room in a closet space though. 52inx24inx5ft., and i want to stack 2 trays with 18 plants each in a SOG...

i woke up this morning and to my surprise the hps light had not turned on in my flowering room. i opened the space and discovered the bulb emitting a blue glow but no sun light. did my bulb burn out or do i need to replace the ballast?

can i use a blue light to light the flowering room during 12 hour of darkness instead of a green light?

i opened my flowering space today and discovered a white residue on the tray table and some other layers or gunk. i think it's from the nutrients and CO2 but i'm not certain. any ideas?

how much yield should i expect, given all other controlled variables are properly managed, from (9) 10in - 12in whitebarries, w/1000w hps, mylar, co2, nutrients, in a 22in x 44in x 5ft height space? any advice on how to get the max yield? does the have to be inches away from the plants or can...

how much yield should i expect, given all other controlled variables are properly managed, from (9) 10in - 12in whitebarries, w/1000w hps, mylar, co2, nutrients, in a 22in x 44in x 5ft height space? any advice on how to get the max yield? does the have to be inches away from the plants or can...

i know. would there be much of a difference in final product if i swapped it out with a 400w?

i'm going to transfer the airconditioner to the window where my intake duct is at. i'm thinking about buying a fitting that converts the 6 inch duct to a 4in x 6in rectangular opening to suck the airconditioner's cold air directly into the grow room. is the direct cold air from the...

i have a problem. i have a 52 inchx2 ft space (8ft in hight) w/1000w hps flowering 7 whiteberry 12' plants. my lamp is contained within a 6 inch tube thats connected to a blower. still, the temp is way too hot. i tried making my own airconditioner by using an ice-chest, tubing, a pump, and...

i have a similar problem. i have a 52 inchx2 ft space (8ft in hight) w/1000w hps flowering 7 whiteberry 12' plants. my lamp is contained within a 6 inch tube thats connected to a blower. still, the temp is way too hot. i tried making my own airconditioner by using an ice-chest, tubing, a pump...