how low/high you hang your light? I notice that I had this issue when my light are hanging lower/closer to the seedling. So when I move the light higher, the node started to space out more. (reaching for the light)
The light is about two feet away but the PPFD is about 300
Hmm i would say wait for another week or so to see if the next node would stack clowe. If it stack close i would move the light a bit higher
Thank you sir.
I would move the light a bit higher unless you like tight node space. You will see the difference.
Everything looks normal to me. What strain is that? Some genetics are naturally squat with tight node spacing; so it could just be the strain.
Another impact on node spacing is blue light. If there's lots of blue light in the spectrum (about 20% or higher), then it's probably a contributing factor. Unfortunately, just looking at the grow light's spectrum chart you can't tell how much blue light is in it - even if there looks to be a large spike. Although, the kelvin temperature could give you an idea.