Possibly rootbound? Small growth? Day 23 flower. 2 gallon Smart pots. Canna CoCo.

[Switcher56]

Shit just realized I've been running my temps to cold. Averaging 74 degrees in flower with lights on. I've just been reading that optimal temp for led's is around 85 degrees. Hopefully since I just started week 5 they will start packing on weight since I just adjusted temps to be warmer.

My advice is change your source of reading... 20-25 deg C (68-78 deg F) is where you should be (from my reference material). Certain "varietals" may require a higher temp (few) the critical aspect is to maintain a 10 deg delta between light on and lights off, which can be adjusted with your exhaust fan.

 

[rosinhood666]

https://news.californialightworks.com/tips-tricks-best-practices-for-growing-with-leds/

"LED’s emit no IR, so to achieve similar metabolic rates found in HID or greenhouse conditions at 78F air temp,LED growers need to run the room air temp at 83F-85F. Air temp can also be lowered by 3F-5F in the last 2 weeks of flower to enhance ripening, but remember as relative humidity goes up the air temps go down, so be prepared to make adjustments accordingly."

 

[Switcher56]

... like I said, change your source... An LED company, really?? I only read the 1st 2 paras, nuf said.

I maintain my temps/RH IAW this chart, so I know how to fine tune my temps/RH accordingly. I finish of my girls @ 75/55. <--- That is a number widely used in what we do and further assists in the drying and curing process.

Sellers sell stuff and consumers buy stuff. This is how I position my LED for the various stages of growth:

• seedlings ~ 60-90 umols;
• clones ~ 100-200 umols;
• veg ~ 300-425 umols; and
• bloom ~ 700-1200 umols ( I stay below 1K, because above 1K required CO2 enrichment.