switching bulbs from blue to red ...

[nickman]

at what point do u change ur lights?

im using a mh bulb for vegging and im gonna change the bulb to a hps bulb for flowering...
the problem is i dont really know when to change it...

should i change it at the same time that i switch to 12/12...
or
should i wait till the stretch is over...





Ive always used a dual arc bulb that is 60/40 red /blue the entire way through...

Im pretty sure that i should wait till they stop stretching...

 

[greenpinky]

Ur right. Change them at 12/12

 

[nickman]

r u sure... i always thought that the red hps bulb will make them stretch more then the blue light of the mh ...

would it b better to switch the lights after the stretch is over ...

 

[nickman]

anymore help out there...

 

[LittleAmsterdam]

There's many factors that control stretch. i.e. nighttime temps, too much nitrogen during flower time, too much CO2, and a HPS bulb. Hortilux Super HPS has enough blue to not worry about this and focus on perfecting other conditions.

I prefer to grow with a Hortilux Super HPS because it emits more lumens than a Metal Halide and I like the nominal stretch I get from it. I flower my plants when they're small and train them the first two weeks to deal with the stretch.

What type of plants are you growing and what style?

 

[greenpinky]

Well look at it this way. Do u want little popcorn buds with no strech in them or big streched out buds . https://www.icmag.com/ic/showth.read.php?t= check out this thread for more info on the subject...... if anything try it ur way and report back to us ur results

 

[nickman]

There's many factors that control stretch. i.e. nighttime temps, too much nitrogen during flower time, too much CO2, and a HPS bulb. Hortilux Super HPS has enough blue to not worry about this and focus on perfecting other conditions.

I prefer to grow with a Hortilux Super HPS because it emits more lumens than a Metal Halide and I like the nominal stretch I get from it. I flower my plants when they're small and train them the first two weeks to deal with the stretch.

What type of plants are you growing and what style?

Sage and Sour / Super Sour OG ...
10 gallon smart pots ...
Sunshine mix#4 ...
Organic nutes ... "roots organics"
1000 watt Dual arc bulb 60/40=hps/mh ...

I added a 400 watt mh bulb for vegging , but now i need to know when to switch the bulb to the hps bulb ...