Pots drying out too quickly at seedling stage - help PLEASEEE :)

canadianreefer

Well-Known Member
Alright so I germinated two seeds; one flying dutchmen white widow and one soma seeds nyc diesel, both feminized, both germinated very nicely.

So I planted them today. After speaking with, 'johnny', who likes to offer me advice with my plants, he suggested that my HPS system may be the problem in that it's drying out all the soil while the seeds are just starting to pop out of the soil, hence the reason they don't make it.

So I decided to use my 4x 42W CFL deal this time around since there's less heat output therefore less of a chance of drying out the soil.

I was just wondering if any of you have had the same problem where your HPS system just sucks the soil dry? And what do you do about the problem?
My HPS light's about 2 feet from my pots and the temp around the pots is comfortable, not too warm, but says it's 90F and when I put my fan on it's either too strong and knocks over the pots or it only lowers it to about 80F at lowest.

Should I mist twice daily in this case? I'm scared of overwatering though...
I'm really at a loss because it's either too hot or the pots seem waaaay too far away from the light. Can I virtually lower the pots/raise the light until the temperature is ok or is there a 'limit' sa to how far the light can be?
It's a 250W MH.

Thanks in advance.
 

LeRoy JaBluntski

Well-Known Member
you shouldn't really be using that big of a light now anyways. use your cfls until the seedlings start to develope a root system and grow a little bit. then throw that mh on there and watch them take off. i have a little problem with my hps drying out my soil but i wait to use my 400 mh until they have an intriquite root system and in bigger pots. by that time the top of the soil drys out a little but a half inch down its still very wet
 

Seamaiden

Well-Known Member
One way to alleviate the problem is to simply put the seedlings into a tray (click my name or link or something, you'll find my gallery to see what I mean) that holds water. Keep about 1/2" of water in the tray until they've got a few nodes' worth of growth and are ready to transplant. I usually transplant with they're about six to eight nodes' worth. Once transplanted, do away with the tray, this is when they appreciate being allowed to dry out a bit.

This is how I do my outdoor plants, all are going under the sun, and there ain't no HPS or MH that's gonna rival the sun for brightness or intensity.
 

T.H.Cammo

Well-Known Member
Pretty much what everybody else said! Smaller pots dry up quicker anyway, heating them up with an HID, right out of the gate, is just exaserbating the problem (i love that word - exaserbate!). Anyway, yeah, just keep them under CFL's for awhile.
 

canadianreefer

Well-Known Member
HAha awesome word.
Cool thanks guys. I'm using my CFL's for now. Both of my seeds sprouted nicely and grew about 1cm in the first day. They're doing really well. Also the cups aren't drying out as quickly - they're deeper and I'm using plastic cups instead of peat pots, which seemed to have absorbed too much water into themselves and sucked it all away from the seeds.
Thanks!
 
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