Starting my grow

W

Woodbeeskunked

Member
I received my seeds today and want to start them under 150W hps for 2 weeks.. then put them under 1000W MH... the seeds are autos and using FFOF with FF nutrients. Is there a lot of objections to starting these under 150 hps? I am new to this so plz help if you can
 
TheSadVeryBadMadGrower

TheSadVeryBadMadGrower

Well-Known Member
Woodbeeskunked said:
I received my seeds today and want to start them under 150W hps for 2 weeks.. then put them under 1000W MH... the seeds are autos and using FFOF with FF nutrients. Is there a lot of objections to starting these under 150 hps? I am new to this so plz help if you can
Click to expand...
Keep the light rather high. Seedling don't need much at all.
 
.Smoke

.Smoke

Well-Known Member
No problem starting with the HPS. Above poster is correct.
Make it easy on yourself. Download a Lux app on your phone. Hang your 150w to where your seedling is getting 11k Lux and you should be good.
2 weeks and hit up the 1000w. Mine go under a 1k right about that time.

Best of luck and happy growing!

***Edit. If you find you like using the Lux app, drop $30 and get a real meter when you can. Those apps are not very accurate but are good enough to get started.
 
W

Woodbeeskunked

Member
Gray thank you for the response. Would 24” be too high? Will this method of money savings strategy hurt my total yield. I will be using the low stress training when switching to the 1000W MH
 
BluntMoniker

BluntMoniker

Well-Known Member
A 150w HPS isnt much, but it's a lot more than a seedling needs. You could get away with using a CFL, bit If your going to use the 150w, just keep it at a good distance away. 24-30in should be fine, as they really arent nearly as intense as higher wattage HPS fixtures.

And be careful with ffof.. it's great stuff, but can be a bit hot on seedlings, and with autos, you wanna do everything you can to prevent stress. I'd suggest mixing it 50/50 with ff happy frog if possible. Itll lighten the soil, and help prevent burning on young seedlings
 
W

Woodbeeskunked

Member
I will take your advice on the lux app. This forum is awesome. I am starting 2 plants in my new room 5’x6’x 7’ ceiling. I hope not burn my plants with 1000w bulb. Will have 6” exhaust for heat.
 
.Smoke

.Smoke

Well-Known Member
Woodbeeskunked said:
Gray thank you for the response. Would 24” be too high? Will this method of money savings strategy hurt my total yield. I will be using the low stress training when switching to the 1000W MH
Click to expand...
Haven't ran a 150w so cant help on height. That's why the Lux meter is so important.
You won't suffer on yield. Running the 1000w right now would just be a waste of energy.
 
.Smoke

.Smoke

Well-Known Member
Woodbeeskunked said:
I will take your advice on the lux app. This forum is awesome. I am starting 2 plants in my new room 5’x6’x 7’ ceiling. I hope not burn my plants with 1000w bulb. Will have 6” exhaust for heat.
Click to expand...
You'll be fine. This is a 1000w hps @ 10" above the plant. (In Flower)
20200115_005345.jpg 20200115_005417.jpg 20200115_005510.jpg
Air cooled hood is a must have!
20200107_005709.jpg
 
Sfrigon 1

Sfrigon 1

Well-Known Member
Definitely ease them into that thousand . Those things are dangerous, especially coming from a 150 of a dif spectrum
 
Sfrigon 1

Sfrigon 1

Well-Known Member
Not just heat , the power of those are intense. If it feels warm on the back of ur hand move it up . I am just speaking from experience I lost seedlings
 
xtsho

xtsho

Well-Known Member
Woodbeeskunked said:
I have the umbrella style hood for my 1000w hps.. I will adjust my in and out vent to accommodate.
Click to expand...
You might want to think about getting a sealed hood. A 6 inch 400+ cfm fan can pull a good majority of the heat produced by a 1000 watt out of the grow area when you're using a sealed hood. You can get a sealed hood for around $50. Also you mention both MH and HPS so I'm assuming that you're using a digital ballast that accommodates both types of bulbs. That's important because some of the older ballasts will only run one kind of light.
 
.Smoke

.Smoke

Well-Known Member
@xtsho is absolutely correct. In my 4'x4'x7' tent I have a 435cfm 6" exhaust, air cooled sealed hood running a 1000w mh right now. My room temp that the tent is in is 70F. At 100% exhaust my tent is 80F. In that parabolic reflector your room is gonna be 95F+ in minutes with the 1000w.
 
W

Woodbeeskunked

Member
I do have a 6” exhaust at 435 CFM’s. This room is in that basement with an ambient temp of 68~. A little cooler in the summer. I am drawing air in from the lower 1/3 and exhausting from the ceiling at opposite walls. The cubic feet in the room is 210 the exhaust fan should turn over the air 2x pr min. Am I missing something on the temp getting to 95*? Yes I have a ballast for both hps & my.
 
.Smoke

.Smoke

Well-Known Member
Woodbeeskunked said:
I do have a 6” exhaust at 435 CFM’s. This room is in that basement with an ambient temp of 68~. A little cooler in the summer. I am drawing air in from the lower 1/3 and exhausting from the ceiling at opposite walls. The cubic feet in the room is 210 the exhaust fan should turn over the air 2x pr min. Am I missing something on the temp getting to 95*? Yes I have a ballast for both hps & my.
Click to expand...
Screenshot_20200116-191630_Chrome.jpg
www.advancednutrients.com

How to Choose the Best Growing Medium for Hydroponic System

How to build a grow room part 4 - indoor hydroponics for beginners
www.advancednutrients.com www.advancednutrients.com
They're like, really fucking hot :bigjoint:
 
Last edited:
You must log in or register to reply here.
Top