Disclaimer: I still use HID and I'm NOT an LED expert. All of my LED knowledge is from other parties or research so I can't say from first hand experience one way or another. I also run a medical grow consulting business in SoCal.
Lotta work today... Had to transplant 9 of the 10 that were in the clone box from earlier pic's. 1 Mazar's roots were not quite ready to get switched over just yet. Then after that was done, murdered "The Hulk" and took 7 more clones from her, took her down to the lowest point possible and having her regrow with a massive root system. Transfered all 3, SpiderMan, Beast, and The Hulk today into 2 Gal pots too. Beast is the unnamed 2 Gal pot now. Between SpiderMan and Beast was able to get 14 new Blueberry clones. Topped those down too. Clone box is now packed again too.
Gave the girls a feeding of 10L water for the 9 new ones and the 3 old ones. Gave them a nuet mix of sensi grow A and B, B-52, and Voodoo Juice. 1L each for the old 3 (SpiderMan, Beast, Hulk) and the 9 new ones in the 1Gal pots got the remaining 7L between them.
Just an update, things are moving along nicely. Temp and humidity levels are stable, temp is just below 80 degrees and humidity is floating between 65-70%. Been checking on them often (at least twice a day) to see how their needs are for the next feeding, it is now the fourth day since they were feed last and not in any need of a feeding yet.
Normally under HID, they were in need of feeding every two to three days so it is already a noticable difference. The initial feeding was only at 1/2 strength so I think I might bump up the next feeding (expecting to be sometime last day 5 or early day 6) to 2/3rds strength level. As I suspected, sofar my thoughts have been right on the money. Since I was normally feeding 2.5-3.5 times a week under HID and now at best looks like I will need to maybe feed 1-1.5 times a week at most under LED. That will add up to some big savings with regards to water usage and nutrients.
This first time around is a big testing cycle, so it will be fun to play around with things and change it up on the fly. Since the feedings have decreased so drasticly, I might have to increase the nuet levels to as high as a double strength feeding. I will slowly work my way upto full strength and see how it goes from there. Next feeding will be 2/3rds and after that full. If the plants are reacting well with no signs of nuet burn then I will increase feeding levels from 1.25, 1.5, 1.75, and 2.
What I mean by this is, say for example the plants are getting feed a total of 10L of water, base nuets will be 4mL per liter and grow nuets will be 2mL per liter. Or 40mL base and 20mL grow, a 1.25 strength would be 50mL and 25mL, 1.5 strength would be 60mL and 30mL, 1.75 would be 70mL and 35mL, and double would be 80mL and 40mL.
Same as a 2/3 would be just over 26.5mL for base and just under 13.5mL for grow. All based off 10L of water.
Kind of nice that there have been no issues as of yet to report, hope it stays that way. Will keep you posted as to when the next feeding takes place.
What were your old temp and humidity levels under the HID? The same/different? I assume your old HID was not air cooled? Be sure to keep monitoring the moisture levels and don't be in too much of a rush to double the nutrients.
Disclaimer: I still use HID and I'm NOT an LED expert. All of my LED knowledge is from other parties or research so I can't say from first hand experience one way or another. I also run a medical grow consulting business in SoCal.
Yeah I found that out as I just added the second feeding last night, but discovered that they are having a minor issue with nuet burn and the first feeding was only at 1/2 strenght. I doubt I will even get upto a full strength feeding for quite sometime let alone higher then full.
I will have to double check the old temp humd levels under the HID to be 100% sure but I believe it is pretty close to comparable right now, currently running a steady 78-80 degrees and humidity is floating between 60-70%. I would like to lower that amount closer to 55% but will be happy with around 60%.
Here is next update to follow.
**Edit** to add addition.
During the course of the past 3 years had previously used both aircooled and uncooled HID. The latter period of time used uncooled HID lighting. I beleive under uncooled HID was running temps of around 90 degrees and the humidity was around 60%. I will look back at the data and double check 100% later.
Last edited by AfganBerry on Wed Dec 14, 2011 12:36 pm, edited 1 time in total.
So yes, that 1/2 strength orgional feeding cause some minor nuet burn, this feeding happened late tuesday night (yesterday) and was only water. The 9 shared a total of 2.25L of water (250mL each) and the bigger 3 had 1.75L of water. Spiderman (blueberry on left) had 750mL of water since was dry and Hulk (mazar) and Beast (second older blueberry) each had 500mL of water.
Gave the clones a mix of 0.5mL of Voodoo Juice and 0.5mL of Pirahna each per L of water. Feed them at same time as the others.
Once nuet burn issues seem to subside I will continue with 1/4 strength feeding next time if all goes well.
So far I can conclude that I have used way less nuets then compared to the same time under HID as these first two feedings would have been atleast 1/2 strength and 2/3rds to full strength at the second feeding. First feeding was dec 8th, 2011, second feeding was tuesday dec 13th, 2011. Depending on how you want to count the days it is either 5 or 6 days between feedings sofar.
Personally we have been counting the day of feeding as day 1, so in that case it would have been 6 days. Either way under HID would have had atleast 2 feedings during that same period of time (every 2-3 days). So I am using alot less water too.