when you get done with this grow, throw all that rockwool away and use GH rapid rooters instead for your clones.These are my 2 mothers I just watered them with straight RO water with ph of 5.8 hoping it fixes what ever is wrong. It is so hard to tell what is wrong cause all show different signs and are all getting the same feeding so I can understand how the Lucas formula makes sense to use
You dont think 4 hours of being submerged will drowned them out ?i would fill it up high enough with RO so that the RW is completely under water. let that sit for 4hours, drain, and refill with lighter nutes.
no.You dont think 4 hours of being submerged will drowned them out ?
All I have is led one different is they went froma mars to a spider ledWhat type lights did you have these under before? The swap to LEDs from HIDs can be challenging. I suggest investing in a cheap infrared thermometer to measure leaf temps and do whatever it takes to keep leaf temps around 85 degrees F. I find it odd that just new growth is showing these symptoms. Remember you have to keep everything synchronized, hotter more feed cooler less feed, same goes with light intensity and co2 everything has to be synchronized. Under LEDs your plants will not transpire as much as other light sources with increased infrared heat so you will need to increase room temps into the lower 80s in order to get leaf temps around 85 and I would also recommend decreasing nutrient concentration by at least 25% when going to LEDs from HIDs.
Can i just continually flood for for hours and let it recirculate or should I let it sitWhat type lights did you have these under before? The swap to LEDs from HIDs can be challenging. I suggest investing in a cheap infrared thermometer to measure leaf temps and do whatever it takes to keep leaf temps around 85 degrees F. I find it odd that just new growth is showing these symptoms. Remember you have to keep everything synchronized, hotter more feed cooler less feed, same goes with light intensity and co2 everything has to be synchronized. Under LEDs your plants will not transpire as much as other light sources with increased infrared heat so you will need to increase room temps into the lower 80s in order to get leaf temps around 85 and I would also recommend decreasing nutrient concentration by at least 25% when going to LEDs from HIDs.
Well if you have salt buildup you might run something like floraklean, clearex, final flush or something to help break down the salts, other wise I would just cut back on the ppms and continue as you have. Continuously check PH and PPMs and make sure all other environmental factors are in check, invest in the infrared thermometer and make sure leaf temps are 85, usually LEDs only raise surface temp a few degrees so lower 80 ambient is about right. Look into VPD (vapor pressure deficit) and follow the chart.Can i just continually flood for for hours and let it recirculate or should I let it sit