chockeyfan6
New Member
So my 3 seedlings just sprouted out of 10, the question now is how far away should i keep my 600 watt mh bulb away from the 1/4 inch tall seedling!!?????
how far to keep light from seedlings?
- Thread starter chockeyfan6
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dl290485
Well-Known Member
It's not ideal to start a seedling out under 600w. It's a waste of power and you have to be careful not to put it too close.
When a plant is established, anything closer than 30cm is really risking over doing it. For a new plant, just like fertilizer you will want a quarter strength to start, then half then go to the closest the lamp can get when it's fully growing and ready
When a plant is established, anything closer than 30cm is really risking over doing it. For a new plant, just like fertilizer you will want a quarter strength to start, then half then go to the closest the lamp can get when it's fully growing and ready
dl290485
Well-Known Member
Hmm that might of been a bit confusing.
Start at 90cm (4x 30cm because 30cm is maximum closeness)
go to 60cm when small still but not a little seedling
when it's established and growing then go to 30cm but even at that, your other conditions such as fans and ambient room temperature may push you over the temperature limit and you may have to back it away still.
Start at 90cm (4x 30cm because 30cm is maximum closeness)
go to 60cm when small still but not a little seedling
when it's established and growing then go to 30cm but even at that, your other conditions such as fans and ambient room temperature may push you over the temperature limit and you may have to back it away still.
chockeyfan6
New Member
ok well move it to 90cm cuz we had it at 60cm because we thought it would be fine since the humidity is at 70% and the temp was 85 F
DONNYS
New Member
seedlings dont need much light
DONNYS
New Member
good and sound advice