ok guys got a quick question

whats a good way to cool my grow box down its getting like 75-80 and its really not good for my little ones i have in and out fans but there just not doing it is there other things i can do?

Get larger fans. Put intake on bottom exhaust up top

ya good idea im just cheap and dont wanna go buy 40 bucks more worth of fans

Co2 raises their optimal growing tempatures. So instead of lowering the rooms tempature, your raising the plants tolerance. Also 75-85 isn't bad at all

ok cool that works ill def do some c02 and my one plant must hate heat because it has signs of heat stress on the top new growth it has the yellow in the middle of the leave

How close is your light to the top of your plants? if you can't afford bigger fans get some additional small clip on oscillating fans. Ensure your exhaust is not venting air out into the same room that the intake is taking air in from.