When to put seedlings under CMH
- Thread starter Dee Muney
- Start date
Richard Drysift
Well-Known Member
Never used CMH lighting myself but it can’t be that much different than a regular MH. I would keep them under the LED until they grow a set of nodes or two; maybe 3+ weeks from seed. If you pull up your CMH far enough; say 2-3 feet from the top of the plants it’s probably safe to put the seedlings under it right now.
B|uDreamer
Well-Known Member
My autos go straight from a seedling plug to a pot about 3 feet away from a 315 within a few days of breaking ground. Let them grow to 2 feet away then adjust to keep it there through veg. I stop raising as much in flower and they usually end up about 18 inches zway at the end.
JoeBlow5823
Well-Known Member
I sprout under a 315....
dennis000
Active Member
JoeBlow5823
Well-Known Member
My 315 doubles as a heater..... House is typically kept around 67-70 which is pretty cool for a sprout.
Renfro
Well-Known Member
My basement doubles as a heater. Only time I ever have to run the furnace is if it's cold ass winter AND my flowering rooms are both off like harvest time for example.
JoeBlow5823
Well-Known Member
Yeah yeah brag on...... lol
Dee Muney
Well-Known Member
I allready have some 5 week old plants currently under the CHM so it is allready running . It’s on 18/6 the led is on 24/0 trying to get the sprouts to catch up lol
Dee Muney
Well-Known Member
Richard Drysift
Well-Known Member
Ahh so the CMH has more prettier colors....
.Smoke
Well-Known Member
They should go under it now then if you're running it already.
These are under 400w MH @ 30k Lux.
500W @ 40k
Better to get them used to it asap.
Dee Muney
Well-Known Member
You don’t get any light burn on the top of some colas? That happened to me
