is added co2 worth it for me?

Got 6 females in their 6th week of flower under 2 400w hps. is it worth it for me to add co2 to a room that I cant get much above 85? Room varies from night 70 to light 80-85. I understand that added co2 wont work unless temp is 95ish. Im using the sugar/yeast method..am I wasting my time? Growing hindu kush...anyone got a pic of what one looks like ready for harvest? Ill admit, I dont know what the hell Im doing but they are still alive!!!!

95ish...never heard anything like that before???? didnt know temps mattered with cO2

iv heard your temps can go as high as 95 and the plant wont mind...but with co2 i think temps should be around 85-90 to be effective...

Not sure about the 95 degrees, although I don't think anything above 80-85 is beneficial. There is a co2 calculator on this site so you can figure how much you need for your size room. When you're flowering you should have the co2 coincide with the lights. Hope this helps.

CO2 is effective from 65F to 95F anything higher in temp will cause heat stress, without CO2 the heat stress will start when the plants get to 85F and above, so CO2 does increase the plants ability to withstand higher temps. This does not mean it is more effective than any one temp over another, although the stomata of the plant will open more at higher temps to a point and be able to take in more CO2. Anything between 65F and 95F is ok with CO2, I try to stay within 70-85 myself, but my highest temp to date was 83 in the dead of summer so its all good.

Thanks for the info folks!!!!! This site is so helpful