Seedling humidity dome conditions?

DEA Raider said:

Whats up everyone, new here and looking forward to posting a journal of my OP and probably some tutorials in the future.

I germinated 4 white widow skunk seeds in my paper towel 2 days ago and transferred them to rockwool last night. I put them in my humidity dome under my 600w MH light, running at 75 percent. My problem is, I cant keep the domes internal temp. under 84-86 degrees. I'm sure by pulling the light back even further (its already ~2 feet or more away from cubes) I could cool it down... but still maintain proper lighting to the seeds?

My main questions here are: How hot can a humidty dome be without potentially damaging the seeds/seedlings, and how many lux/lumens should the cubes be receiving? I have a good lux meter and they are receiving about 20k at the top of the dome.. THANKS!

I've attached some pics to show my setup, the light is a further back now and i replaced the bottom of the tray with the reflective side of panda wrap; it cooled it down a few degrees but not enough.

Click to expand...

DEA Raider said:

Whats up everyone, new here and looking forward to posting a journal of my OP and probably some tutorials in the future.

I germinated 4 white widow skunk seeds in my paper towel 2 days ago and transferred them to rockwool last night. I put them in my humidity dome under my 600w MH light, running at 75 percent. My problem is, I cant keep the domes internal temp. under 84-86 degrees. I'm sure by pulling the light back even further (its already ~2 feet or more away from cubes) I could cool it down... but still maintain proper lighting to the seeds?

My main questions here are: How hot can a humidty dome be without potentially damaging the seeds/seedlings, and how many lux/lumens should the cubes be receiving? I have a good lux meter and they are receiving about 20k at the top of the dome.. THANKS!

I've attached some pics to show my setup, the light is a further back now and i replaced the bottom of the tray with the reflective side of panda wrap; it cooled it down a few degrees but not enough.

Click to expand...

justugh said:

hi

one stop the light that right now they only need warmth (tell u in a min) as for the dome u can keep it but u are going to need 2 things 1 laundry cap 2 seltzer water

place the tray someplace warm and dark this will make the seeds sprout and grow up looking for the light(longer stalk deeper tap root) .......now with the seltzer water and cap u fill the cap up and put it in the corner put the dome on and open the slot so the air can escape (as the seltzer water warms up the Co2 in it releases pushing the Oxygen out the top ) i have great sprouts in 3 days

jiffy plug green house co2 trick ....it sits ontop of my T5 light

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REALSTYLES said:

You are kidding right did you look at my pics I posted before? I just watered the cubes and dropped the seeds into them no dome no darkness

this is them on 3-17-2015
View attachment 3398782

and this is them on 4-15-2015
View attachment 3398788

I just waited to see the roots shoot through the 1.5" cubes and transplanted them in 6" Hugos

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OhGravity110 said:

hey guys i just started my rockwool seedlings any pointers .. i have those two bulbs untill a week after sprouting. im going to be using a dwc 5 gallon bucket with a 5inch net pot.. those cubes are tiny should i wait until the root seep through -place them in a bigger rockwool then put them in the net pot for the dwc. any help . here are some pics!

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