hps or mh

http://www.hydroponics.net/i/131469 this is my mh

http://www.hydroponics.net/i/131446 this is my hps

diddystyles72 said:

do you use co2 in your grow?

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Actually I hardly grow now. I used to all the time but I’m an old fart and after I retired and was in a position where I could buy really top herb I lost much of my former interest in growing so I hardly do it now, just once in a while for something of a hobby or for fun. But I have used co2 at times and it can make a big difference depending on your setup.

Now I do have my own theory on if it is worth the cost and effort and that depends on how someone grows. If they have a small number of plants in a large and fairly well ventilated area that gets a good supply of fresh air I am not sure that in their case it would be worth the cost and effort but if you have a ton of plants and or are growing in a smaller area and or one with little to no fresh air flow it will make a big difference adding co2.

If you have a well-ventilated area that isn’t jam packed with plants it is not like there will be a lack of co2 in the air. You aren’t growing full sized oak trees in your basement that will deplete your basement or home of co2 and leave your plants lacking what they need.

In the optimal perfect system co2 would be a part of it but then everyone has to look at how they can do things and what fits their budget and abilities and do the best with what they have to work with. If someone can afford to add co2 and knows what they are doing so they can build/assemble a properly working setup I say by all means do it. Every little thing you can do to give your plants the closest to perfect growing conditions possible will help them to grow better, faster, stronger and produce more.

But if you are on a tight budget or for some reason or reasons some certain part or parts of an optimal perfect grow setup cannot be part of what you do then you improvise and you do the best you can with what you have to work with money-wise or space-wise or ability-wise etc.

Brick Top said:

Actually I hardly grow now. I used to all the time but I’m an old fart and after I retired and was in a position where I could buy really top herb I lost much of my former interest in growing so I hardly do it now, just once in a while for something of a hobby or for fun. But I have used co2 at times and it can make a big difference depending on your setup.

Now I do have my own theory on if it is worth the cost and effort and that depends on how someone grows. If they have a small number of plants in a large and fairly well ventilated area that gets a good supply of fresh air I am not sure that in their case it would be worth the cost and effort but if you have a ton of plants and or are growing in a smaller area and or one with little to no fresh air flow it will make a big difference adding co2.

If you have a well-ventilated area that isn’t jam packed with plants it is not like there will be a lack of co2 in the air. You aren’t growing full sized oak trees in your basement that will deplete your basement or home of co2 and leave your plants lacking what they need.

In the optimal perfect system co2 would be a part of it but then everyone has to look at how they can do things and what fits their budget and abilities and do the best with what they have to work with. If someone can afford to add co2 and knows what they are doing so they can build/assemble a properly working setup I say by all means do it. Every little thing you can do to give your plants the closest to perfect growing conditions possible will help them to grow better, faster, stronger and produce more.

But if you are on a tight budget or for some reason or reasons some certain part or parts of an optimal perfect grow setup cannot be part of what you do then you improvise and you do the best you can with what you have to work with money-wise or space-wise or ability-wise etc.

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thank you for your info on this matter any advice from a long time grower is priceless to me a quick question have you used superthrive before and what you think of it

I just checked on those Super Blue Bulbs and there about $30-$40 a piece and only come in 1000w.

Why dont you just buy a 400w Combo Grow light and switch out the bulbs when the time is right or go with a 500w Dual Spectrum Light that uses a 250w MH and a 250w HPS at the same time.

jjp53 said:

I just checked on those Super Blue Bulbs and there about $30-$40 a piece and only come in 1000w.

Why dont you just buy a 400w Combo Grow light and switch out the bulbs when the time is right or go with a 500w Dual Spectrum Light that uses a 250w MH and a 250w HPS at the same time.

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so is the dual spectrum bulb better than just the hps bulb ?

Water cooled warm spectrum 400 mh per 4' x 4' area. Water cooling lights enable you to position them extremely close, closer lights penetrate further.

her are some speck on the bulb I use It's 400 watts and 32000 lumens @ 7200k.
SolarMax Veg Conversion - 400 Watt Metal Halide Conversion Bulb

I only have a not swith ballast.

VEGETATIVE
In younger plants it is the region between 380 nm - 520 nm that is the most crucial. This region is commonly referred to as "Blue Light". SolarMax lamps deliver 30% more "nutritious" light radiation than standard lamps. The result - more vigorous, vegetative growth and stronger roots during the important early stages of a plant's development.




Product: MHT 400W Veg/Conversion
Ballast: HPS Ballast S51
Lamp Jacket: T15
Overall Length: 271mm 10.7"
Color Temp Deg. K: 7200
Lumens: 32,000
Life Hours: 15000

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flower light

http://www.hydroponics.net/i/131446

EYE Hortilux Super HPS grow lamps fine-tune your lighting system to provide optimum spectral energy levels that promote vigorous plant growth. The EYE Super HPS EN Grow Lamps provide 17% more total energy and 25% more energy in the violet, blue, and green spectrum than standard High Pressure Sodium lamps.
Lamp Code: LU430S/HTL/EN
Initial Lumens: 58500
Rated Life Hours: 16000


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so the might make other type of bulbs with specs. like these

MH will help your plant grow stalkier because it's closer to being natural sun light then an hps.

If you have a ballast that is a converted one. You should be able to run a 400 watt hps for blooming. That's what I use.

Thanks,
The MH and HID together seem to be doing the job great. The plants really start to grow once the move into my Flowering room. (I have a small veg room, where the humidity is at 60% and it runs on 24/7.) Nice buds are forming and I am anxious for it to me about 4 to 5 weeks from now... but of course, I am patient.