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MH vs HPS in bloom

the only thing I didn't like was it seemed like my plants took an extra week or 2 to finish with MH... and the buds were tiny .. its all strain dependent like people said.. so it doesn't matter if the give all the info.. I could have the same strains and setup as u.. and one of us will yield more. or less.. better or worse.. its all about environment.. nutes.. an lights .. ill never go back to full MH.. I mite add 1 MH per every 4 HPS. like they said 20 percent does great things. l

What kind of halide bulb did you use?
 

the gnome

Active member
Veteran
use a MH 4000Kbulb
this is what you want.
as for ripening, check out my post, #618 in this thread.
in my tsi fly/OT X IBG grow the Mh plants were finishing way ahead of the HPS plants.

Ive use solar max and sunmatser Mh 6400K/7200K in bloom
small buds
small yield

get the 4000K sylvania 1000w BT56... $25
this is what i got using it on mosca's tsi fly and old time indianna bubbagum:smoke:
picture.php

:blowbubbles:
picture.php
 
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A

AlterEgo860

honestly. the gnome has convinced me to give it a try.. so this is whats going to happen.. im bout to harvest. once I get rid of a few quik zips.. im going to make the flipbox.. and put up another room. then 1 room is going to be mh 4000k 3 1000w an the other room im going to take suggestions for the HPS bulb used.. as long as its not fuckin ridiculous prices.. the mhs are 25 each.. so ill spen 50 to 75 each for hps MAX.. if I have to go over 3 times the amount then its not worth it .. kuz if the mhs LOSE to a 150 dollar bulb I don't care.. I want to see if u can get a cheap HPS and CHEAP MH which will do better
 

Canniwhatsis

High country cat herder
Veteran
I've been thinking of mixing my spectrum for flower for a while, finances are holding me back tho. Presently I run a 600 + another 400 HPS over flower, and 400MH on a light mover over vege.

My idea is to hang both flower bulbs in a single hood on a mover, swap the 400 HPS for another MH ( so 600 HPS and 400 MH in flower) but rather than both lights turning on at the same time, I want to turn the MH on 45 minuets after the HPS comes on, then off 45 before.

Any one got any thoughts on that?
 
I have a 3200k mh bulb on order. I'm in week 5 of flower using a 600 with a hortilux hps. Will be swapping it out for a 1000w. Can't wait to see what happens.
 

supermanlives

Active member
Veteran
when I used 400 hps and halide from electrical store the hps won yield wise. long time ago tho. mh plants were shorter and seemed to have more resin, hps yielded more. I was back east an an oz was 320 an up. I stopped using the halides in the one flower area. I don't remember how much but it must of been enough . someday I will retry it tho
 

supermanlives

Active member
Veteran
I've been thinking of mixing my spectrum for flower for a while, finances are holding me back tho. Presently I run a 600 + another 400 HPS over flower, and 400MH on a light mover over vege.

My idea is to hang both flower bulbs in a single hood on a mover, swap the 400 HPS for another MH ( so 600 HPS and 400 MH in flower) but rather than both lights turning on at the same time, I want to turn the MH on 45 minuets after the HPS comes on, then off 45 before.

Any one got any thoughts on that?

the 600 and 400 in a hood has been done before. good combo. no input on the light schedule. haven't tried it and don't know anyone who has
 

M4rky2

New member
Go for it

Go for it

Just trying it myself 2x400(1mh-1hps)trichromatic development super at week 5,leaves yellowing a bit quicker on hps side.Good luck bro:
 

Tonygreen

Well-known member
ICMag Donor
Veteran
the only thing I didn't like was it seemed like my plants took an extra week or 2 to finish with MH... and the buds were tiny .. its all strain dependent like people said.. so it doesn't matter if the give all the info.. I could have the same strains and setup as u.. and one of us will yield more. or less.. better or worse.. its all about environment.. nutes.. an lights .. ill never go back to full MH.. I mite add 1 MH per every 4 HPS. like they said 20 percent does great things. l

I tried it and it seems like they take longer to start flowering with MH, similar for you?
 
So there's a lot of different types of halide bulbs out there. If you can remember please do share what bulb you used. Vape is getting awesome and trouble free results and others are having problems. I'm curious why.
 

Tonygreen

Well-known member
ICMag Donor
Veteran
I have learned the frost coverage from mh looks better is an optical illusion. the reason it looks frostier under the blue light is because of the massive amounts of uv in it compared to hps. so much that transition lens reacts to mh but not hps. A black light is pure uv, it will make your bud look the frostiest. Just think about a white shirt under a uv light it glows super bright but the darker color of skin underneath is really dull, thus accenting the white frost coverage even more. This is why high times photographs under black lights a bunch.

:)
 
A

AlterEgo860

I tried it and it seems like they take longer to start flowering with MH, similar for you?

to be honest.. I don't know what K bulbs I used for MH. I think that it took an extra 2 weeks..

the buds were smaller.. and iuno about more resin.. kuz honestly.. u cannot tell much from looking at them.. just u gota look at Test results to see if there is really a difference or not..

the 2 extra weeks really pushed me away from MH.. kuz im trying to keep harvests coming in a week or 2 before I run out.. so with the MH it made me run out of buds.. then harvested a week later..

iuno im one of those growers that likes Couchlock from indicas.. and as heady as I can with sativas.. so I let me indicas go longer.. and sativas go longgg.. lol and that's how I like my bud.. I like to have stuff I can smoke and do nothing.. and stuff I can smoke and go hiking.
 

the gnome

Active member
Veteran
the bulb is a sylvania BT 56 4000K
I wouldn't recommend anything higher.
I tried 6400K and 7200K and it was a disappointing yield.

the sylvie 4000K looks more like natural sunlight more than any other bulb ive used
 
So the 600w hortilux was making some of the leaves turn yellow at the tops. I put the 1000w mh bulb in a few days ago and have seen a little improvement in health. The new leaves at the flower tops are green again and have nice trichomes. My plants just weren't liking the hps I guess. They're bubblegum from Serious. Bud production has not halted. Nothing changed and they look nice. I harvest on December 13 so I'll contribute what useable data I can from that and I'll keep updating if anything weird happens.
 

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