What's going on here, anyone?

[renobambino]

End of week 5. Lights is 20 inches away,

Ppfd 1200, ppm CO2 1300, VPD 1.14, temp 86.5, leaf temp about 84. Last time I feed it was Gaia green approaching three weeks. What could be happening here?

 

[Phyto]

When running CO2 you may need to up your feed, the plants are growing at an accelerated rate and sucking up nutes. Looks like the beginning of a Phosphorus or Ca deficiency, but I’ll caveat my advice by saying I haven’t run CO2 in a long time.

 

[Galgrows]

My thought is it's too warm do you run a fan ? Also maybe to intense of light for that distance?

 

[renobambino]

My thought is it's too warm do you run a fan ? Also maybe to intense of light for that distance?

Yeah the fan blows across the canopy to help with leaf temp. The CO2 is susposed to allow me to run at higher temps. I'm kinda thinking I need more nutes for the amount of CO2 I'm using, dunno.