Root Riot / SANlight M30 too close to plants ? signs of burn?

Indoor Growing
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Hi all,

the 2 little plants are just a few days old. Yesterday I recognised a yellow spot on one of the leaves (pict will follow) and now I m asking myself, if this could be burns. They live in ROOT RIOTS (witch I have to water quite often. 12 drops here 20 drops there…)

I m using a SanLight M30. The distance top of plant to light is 4,724` or 12 cm. Is it too close ?

Temp is 25-27 C - humidity is 40 %

This is my first indoor grow and I must be careful not to use too much LITFA :wink:

Any comments are welcome !

BURNT GORILLA.JPG2699×1929 1.14 MB

Thank you for your inputs - have a nice day !

:helmet_with_cross: :om_symbol:

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Seedlings need very little light. Raise it to 24 inches and lower it when the seedlings start to stretch too much. Try using a humidity dome if you got one. You want the plugs moist but not wet be careful in watering often.

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I’d run an LED setup it could explain something like you’re light being too close to your plant.

@Fill_Watertank

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Seedlings have not much root, so they drink mostly from the leaves, you should raise up the humidity and put a dome as it has been said. Is it no nutes pHed water you are giving? Cheers … :sunglasses:

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Thank you for answering so fast. Really appreciate it, because I need good advice now and not a week after x-mas…

I have a regular propagator with a transparent dome. The first few days the dome was on, humidity around 75-80 %, temp 24c to 26c… All went well…

Then I read on the Net, that high humidity is bad bad bad, because the seedlings might get a fungus or just drown and rot.

And I read that once they show the heads to give them all the light you get. The more, the better… Think I should stop reading too much on the net.
:disappointed_relieved:

I know about not giving too much water. Clever me has a dummy Root Riot in the game with no seed. Just to press it to see how wet or dry he is :slight_smile:

I never give more then about 1 to 1.5 ml per serving. I do this for the first time and I have to learn it by doing… and your advice :slight_smile:

Thank you :helmet_with_cross::om_symbol:

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Jep, pHed water with no nutes, Sir !

I ll put the dome back on and will raise humidity and the light…
Please read my answer to @grief. So I dont have to repeat myself…

Cheers :helmet_with_cross:

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Yes too much of a wet medium will cause problems. Remember this motto for seedlings “moist but not wet.” Let them dry out a little. Letting it dry out helps promote root growth. Also water the edges of the plug and not directly on stall of seedling. High himidity for seedlings and veg is ok

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