I have been doing a lot of reading but i cant seem to find a simple nutrient chart for PPM levels for marijuana plants in hydroponics.... i have a 4x4 foot ebb and flow table that gets flooded 4 times a day i germinated my white widow seeds on January 1st(1 month ago) and they are about 4 inches tall now ....they have only been getting low level nutrients for the past 2 weeks ...im using GH flora nova grow during this veg state but i don't know what the ppm should be.... there is a growth chart on the side of the bottle but I'm not sure if that applies to marijuana...please help if you can ...this is my first full grow...i had bad nute burn on my trial plants so i wanna do this right...
I'm concerned because the growth seems a little slow and the leaves have a uniform paleness to them they are not dark green they are actually kind of yellow but not dry or brittle just light light green....the watter is ppm at about 375
I know all strains are different, but I have 3 plants that are about 7 weeks out of Germ. and I keep the ppm around 1000 I try to keep the ph around 6.5 I have an ebb and flow that floods once a day for 15 min.
if you think your plants are sick, look here: http://www.icmag.com/ic/showthread.php?t=11688 there's tons of charts out there, i found one for GH Flora Nova Grow just by searching @ google. give it a try, google is the shit
here a great web site for nutz http://www.advancednutrients.com/nutcalc3public/ just mess around with the gallons & the type of feeding btw how my plants do you in the 4x4 tray
go to the chart thread at the top there is a nutes calculater and chart for gh and i do what the bottle says and have good results but ww is nute sens so i would cut in half ppm prob 6-800 -peace-
Start raising your nute level every couple of days by 50-100 points until they perk up. This is why DWC is best, you can actually tell if your plant needs more or less nutes quite easily. Also, Fert charts not very useful for MJ growing if you want my opinion. By the way if your ph in hydro is not between 5.5 and 5.8 you are not growing optimally and P is locked out between 6.0 and 6.5. Here check out this link, it got a decent link and gives the whole low-down on pH and TDS.http://www.bghydro.com/BGH/static/articles/0406_tdspH.asp