Right amount of PPM for nutes

TheSixKid

Member
Hi so we got a 8 week bloom feed and each one is about 800ppm in nutes. The person feeding is saying that's not enough and is dumping in two to reach 1500-1600ppm. We are running PROMIX HP in fabric grow pots under a checkerboard of HPS and MH lights with CO2 pumping in at 1600-1800ppm 24/7. I'm just trying to get a better idea of how to feed as I've read it should of reached 1200pm 2 weeks before flushing. Thanks for any help.
 

Daveindiego

Well-Known Member
Does it become a waste of nutrients after a certain number???
I think it becomes a harm the plant and burns them after a certain number.

I’m still fiddle fucking around for what works best, and the past couple, I’ve had max numbers around 900-1000 PPMs. Worked for me, thinking about upping my numbers a little more this time.
 

Raquinotj

Active Member
Hi so we got a 8 week bloom feed and each one is about 800ppm in nutes. The person feeding is saying that's not enough and is dumping in two to reach 1500-1600ppm. We are running PROMIX HP in fabric grow pots under a checkerboard of HPS and MH lights with CO2 pumping in at 1600-1800ppm 24/7. I'm just trying to get a better idea of how to feed as I've read it should of reached 1200pm 2 weeks before flushing. Thanks for any help.
You don’t really need CO2 during the lights off time and anything above 1500 ppms is a waste. Try keeping the PPM between 1200-1500. More CO2 is not better.
 

TheSixKid

Member
Thankfully I'm not in full charge of anything . I'm literally just a helper. Trying to back up my arguments against our main grower. I posted about learning under him before I met him. I'm learning more about what not to do tbh. I have a great understanding of growing but I have bad anxiety and don't like confrontations and this guy will argue with you til he blue in the face that he is right. His argument for the CO2 is that we have a lot of lights so they can handle it and the ppm is because of the CO2.
 
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