Placed the aerator unit outside the grow room cuz I read (forget which thread) that the unit just uses the hot air in the room to aerate the resevoir. Makes sense, seems to have dropped the temp a couple degrees. Thinking of putting the sprayer on a timer too to keep the pump cooler. A few strands of the roots seem to be a bit brown. I think this is from heat stress. Any thoughts on this? Can I remove the brown strands? The healthy ones waaay outnumber them. Timing for the pump?

CO2 is off until flowering.
Topped them all last week. They loved it. They are very tight and bushy. 5+ nodes already.

Just re sealed the leak, yep it came back. Had the sprayer off all night to let the caulk dry and most of the plants were starting to wilt. Turned the sprayer back on and they were perked up by the end of the day with the exception of a couple leaves/leaf tips that I removed. I'm going to have to give all reservoir seals an overhaul after harvest with a more permanent sealer. I'm thinking aquarium glue. I wonder if chemicals from the dried glue or caulk can leach into the reservoir? Don't want that shit in there.

Pics: The last three were taken 4 days after the first ones. CO2 shmiO2
Noticed a couple yellow spots that appeared 10hours after turning the sprayer back on. I misted them this am and have heard that the light shining through the droplets on a leaf can singe a spot like a magnifying glass would. I wonder.