TheBioMaster
Member
hey guys! ive been sitting on a sample of v+b for a couple months and just decided to give it a try in my veg tent. im running coco and a 4' 8bulb t5 unit. this is my first t5 and man are they warm! i cant seal my tent and run my co2 because it gets in the 90's with all 8 bulbs on lol.
anyways, what ppm's should i be running for veg? i went with the directed 1/4 tsp and with drip clean and rapid start my ppms only hit 345ppm. i added about 1/2-3/4 teaspoon more to my 10 gal of nutes to bump it up a bit. i havent checked the ppms yet. i saw all the talk about the ppm and ec conversion and i am unfamiliar with all that. i have a hanna 3 way meter. the ph meter on it is bad but i think the others are fine.
If you go back and read through this thread there are some post which describe the different dosages/levels of nutrient solution that should help you greatly. And several of the guys here have all used it as well and following there examples on usage amounts is a good idea.
Just a FYI, when you run high levels of C02, you want to raise the temps to about 85F to 90F.........
Wait until 30 minutes after lights come on, and then start your C02 generator......this 30 minutes of lights on allows the stomata to open fully, and jacking up C02 levels BEFORE the stomata opens fully, will actually prevent the stomata from opening up all the way and slow growth down instead of speeding it up.
You want to match the EC/PPM levels of your solution with your c02 levels......i.e. your running 1200ppm, then run at least 1200ppm of c02.......this is a good "guide line" to tweaking your C02 to proper levels.
AFTER all other aspects of your environment have been tweaked to perfection....THEN you can begin to jack the C02 levels to 2 or even 3 times of what the EC/PPM levels are.
It is important to use the C02 properly to avoid wasting it, and more importantly to avoid hindering your plant's growth and health......most C02 users go straight to the part about jacking up levels 2 and 3 times of what the EC/PPM levels are......if all other parts of your grow on NOT dead on accurate and "dialed-in" then really anything over like 800 to 1000PPM's of C02 is a total waste IMO..........for your plants to be able to utilize that much C02 and more, you must understand that your plants MUST be a perfect picture of health. And your environment must also be a perfect picture of perfect conditions in relation to the strain type.
Cheers!