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johnny123
12-13-2008, 10:02 PM
hi all can anyone tell me (approx) what my ppm should be at 40 days into 12/12 ?
im on my 4th grow but first with meters.im growing 4 ppp on a 4ft nft table ionic nutes (also boost) and a 600w hps 2x 5" extractors and passive inlet.
all seems ok some really nice buds but i just want to get max potential and maybe a little reasurance/peace of mind.
they where on around 1700 ppm going from veg (18/6)to 12/12 but since turning them, anything over 1300 and they start using more water than nutes and ppm startes to climb is this normal ?
any help would be great. even if there is no set ppm levels other growers norms will do cos then i can still work out a rough average as,as i am still a noob still gathering info and learning loads.
thanks in advance.
(hope this makes sense im really quite stoned :).)
herbie the love bud
12-14-2008, 12:33 AM
The optimal numbers depend on the plant. What you need to do is follow your nutes recipe. If it seems like your plants can take more than increase until u burn the tips a little then back off a bit. Use that as your baseline and follow the recipe at that ratio.
johnny123
12-14-2008, 01:46 PM
hey thanks herbie,yeh thats pretty much what im doing.i just thought i could compare numbers with other growers for some reasurance (i just flap a bit about my girls..).
thanks again...:jointsmile:
theforthdrive
12-14-2008, 09:09 PM
The optimal numbers depend on the plant. What you need to do is follow your nutes recipe. If it seems like your plants can take more than increase until u burn the tips a little then back off a bit. Use that as your baseline and follow the recipe at that ratio.

I agree and would add. What is your starting point? Starting with 0-50 ppm RO water will allow for more Nuts than some hard waters. I would never go above 1500ppm unless your plants seem to like it and you have some hard water. with an RO I would stay 1000-1500ppms! Hope that helps!
johnny123
12-16-2008, 09:17 PM
thanks theforthdrive yeh it all helps !
about hard water my starting point is 250 ppm my figures include this.
heres a pic just for fun.