Growing 3 auto seeds under a marshydro ts1000. Its around 30" above plants, does it look like these guys are getting too much light? Should I dim the light down a bit?
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Almost looks hungry lol
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30” sounds about right.
Your medium looks awfully dry
Also it looks fine to me.
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I’m doing the well debated coco with dry ammendments technique. The coco drys quick on top but just under the surface is still damp
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Is nutrient lockout possible in seedlings? I understood them have all the nutrients they need.
Dry surface and low RH it looks like. Put a clear cup over it for a couple of days. 
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Possible temperature change too… I notice my tops do that when it gets too cold at night.have a slight yellow tinge in the centre.
Definitely need more humidity like everyone said 
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They have those needed nutrients to start in the cotyledons, but only until the first pair of complete leaves … 
Looks normal to me center parts of leaves have a tendency to be just a bit more pale nothing to worry about here IMO.
Seedlings at this stage like it more humid then one thinks, like @ReikoX state’s put a dome over it slightly propped to allow air flow, try to achieve a VPD range of 0.4-.8 kpa and your plants will be more happy
What’s your current temp and humidity?
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