Co2 questions

Ok so today I'm going to be picking up a co2 tank and regulator, I'm having a hard time battling heat and its starting to stress out my smaller plants. Temp is getting as high as 90F, but usually between 86-88. (Using eye Hortilux 1000 watt Super HPS)

My questions are

I will not have a monitor, so I've calculated how long it will take to fill up my room. (12 mins on) How many times a day should I flip the tank on?

Should I just let it come straight out of the tank or should I get some air tubing and run it at the base of the plants?

How much does the temperature generally rise when introducing high levels of Co2 to the grow room? (5 x 5 x 6 )

Any insight is greatly appreciated, thanks.

Anyone??? I'm setting up right now, guess I'll wing it but would like input.

I would get some air tubing to help distribute it more evenly... and remember co2 is heavier than oxygen so set up the tubes so they are higher than ur plants. I suggest getting a controller to make ur life easier, I use a cap air 4, but any similar one will work... it takes out the guess work. But if that's not an option I'd say run ur co2 as much as u can without humidity becoming an issue. Ur gonna want ur co2 regulator on when ur exhaust fans are off, and visa versa. No sense in adding co2 if it gets sucked right out. So I'd say turn ur reg on for 15 mins n then let sit for say 2hrs. Then atter 2 hrs u have ur fans kick on maybe 30mins to an hour or however long it takes ur fans to exhaust room. Then start the cycle again and continue during the whole light cycle, co2 is not needed during the night cycle of course. And I'm assuming u have two diff timers to use for this cuz I'm not suggesting u do that manually. Hope this helps.

I wouldnt be worried about the temp rising with adding co2 as long as you have proper circulation. In fact adding more co2 can allow your plants to grow at higher temps. The optimum level of co2 for cannabis is about 1,500 ppm, and having this amount should allow your plants to grow in temperatures up to 95 degrees. If they still show signs of heat stress try adding a little more co2 to the room, up to about 2,0000 ppm. A freshly circulated room should have about 300ppm already in it, so in your case you should let out about .18 cubic feet or roughly 1.57 lbs of c02 to reach 1,500 ppm. This can all be found in the co2 sticky thread, and that should be able to give you a much clearer answer. Also make sure the co2 tank is in the complete opposite corner of your exhaust, to help the plants get co2 evenly