This thread is from a year ago. Those plants are already in plant heaven one way or another.

Nope, in fact, many fire extinguishers use CO2 gas to surround a fire and extinguish it.

"Humans use carbon dioxide in many different ways. The most familiar example is its use in soft drinks and beer, to make them fizzy. Carbon dioxide released by baking powder or yeast makes cake batter rise.
Some fire extinguishers use carbon dioxide because it is denser than air.

Carbon dioxide can blanket a fire, because of its heaviness. It prevents oxygen from getting to the fire and as a result, the burning material is deprived of the oxygen it needs to continue burning.

Carbon dioxide is also used in a technology called supercritical fluid extraction that is used to decaffeinate coffee. The solid form of carbon dioxide, commonly known as Dry Ice, is used in theatres to create stage fogs and make things like "magic potions" bubble."

hey ne one wana help me out i got sum ?s

We will answer all your questions in one year.

Lol. Normally, this would be thread-jacking, but it's an ancient thread. What do you need?

i got 5 plants growin under 400w hps light bulb w reflective paper all round fan blowin temp btw 70-78 but these yellowish gold spots start small on the leaves but turn into big spots, am i watering it too much? another prob i had all 5 growin under a 48w floursent bulb for veg so i let thm grow 14 days thn threw thm under the 400w n they been there 4 2weeks so ive been growin thm a mnth total well theyre bushy as on the stem n under the fan leaves but they r only 4 5 inches tall...ne 1?

What kind of soil? Are you spraying them under the lights? Sometimes that will cause brown spots as the droplets act as a magnifying glass. Are you checking your water ph? Bushy is good. How many nodes do you have?

nah i dnt spray the leaves i found that out u dnt do that, but its soil w castings n guano mixed from fox farm, if my ph is too high how do i get it bak at 5.5 -6.5 cuz the water was high, soil shuld b fine but ill chek it

nodes r growing all over from each part the stem its bushy but not tall all my plants r bushy w lotsa nodes but only 4-5 inches tall they keep growin but not quik as id think

They sell ph up and down at a pet store or you can use lemon juice to go down and baking soda to go up. Ph is so very important. Sounds like plenty of nutrients available to the plant. Are you feeding additional nutes as well?

ok coo but i dnt understand y there not growin tall but r growin bushy, but i havent introduced other nutes yet xcept bat guano evry 7 days in the soil, shuld i? i jus dnt want these yellowish gold spots 2 keep commn cuz the lass 2 days yesterday n the day b4 is whn i noticed it i dnt hav pix cuz im at wrk but its weird