20 lbs of co2

is 20 lbs of co2 , enugh to cover you for your entire grow cycle? i am just 2 weeks into my 2nd cycle, i went to turn on the botle , and to my suprise the bottle was empty. did i do somthing rong or is that normal?20lbs - 8week cycle.

yes yes and yes, but be verrrrrrrrrrrrrrrrrrrrrrrry careful... its very easy to screw up... err on the catious side.. a very low setting and never let it get above 1200 ppm..... i turn mine on for about 2 hours in the morning and 15 minutes every 2 hours and stop 1 hour before lights out... its debatable on wether to use it straight thru veg and bloom. i personally only use it in bloom and many people believe its good only during vegitation.. either way, try and get a ppm meter and err on caution with co2.. a mistake with co2 can cost you your harvest.. but once you understand all the aspects, you will be glad your using it...

good luck bud...

oh and btw, a 20lber lasts me about 3 weeks when using regularly

thanks for your reply, i have a bloom box and it is computer controled, automaticly controling water , lights & co2. i was told to set my co2 reg @5psi i seemed to work. my first cycle had some big fat buds. but im not sure when i ran out of co2. ill have to watch closer this cycle.

yeah i keep mine around 2 and up to 5 like u do....

a 20lber set at 5 should last about 3 weeks at that setting.... have u ever noticed the top leaves really drying out at all? if not then your levels are good......

but 3 weeks to answer your question

i should probably have some kind of co2 tester, if im going to do this right.do you run co2 the hole time you are flowering? of corse only when the lights are on.but thrue the hole cycle 6 or 8 weeks?

yeah i run mine straight thru to harvest..... and i keep mine ballparked at about 1200 ppm (or try to).. a great friend and a good grower told me this once...

a little gives you alot, so dont try to "max" it out, you'll get nothing... (when talking co2).. so that advise after losing 2 crops early to overdose and i now play it BIG TIME safe lol....

but there is a huge difference in thc levels when done correctly.. i noticed huge differences (about a 50% difference) in quality once i figured the co2 thing out...

thats what i thought, ill try lowering the psi untill i get a meter. the buds looked prety good , i thing thay got a litle nut lock up twards the end but thay were fat. and this is after running the botle empty at 6 weeks flowering.

good luck fishinfool.. sounds like u have a good system there...

reefcouple said:

good luck fishinfool.. sounds like u have a good system there...

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It looks like you may be having some ph issues with your plant. how diluted are your nutes? whats the ppm?

ph always @ 5.6 - 5.8 did i mention this was my first grow? i made a few mistakes water quality was a big isue, revers osmosis system.this grow seams beter?

That plant there looks good for 2 weeks flower. whats the nitrogen ratio on your bloom base fertalizer? have you lowered the N ? right now you need more P and K. Looks like you have plenty of leaves already.

i increased every thing on saterday and added 175ml of b52 , wanted to introduce my co2 but the botle was empty.

yeah RO is the way to go for sure..