Strong Smell Tips?

Hi! Do you mean you can smell the "Green plant" smell? With high humidity the smell gets stronger and more noticable but it's hard to remove totally even with filters. Make sure your exhaust is sealed and all the air gets through the carbon filter. Also is your fan and filter rated to same airflow? I mean is the carbon filter big enough to handle all the air from exhaust? Too small carbon filter will push smells through

I had your same problem in my first grow. Resolved adding another small carbon scrubber inside my closet. Btw if you are having “strong smell” problems with such young plant with no flowers out yet, you are going to have a bad time in a couple of weeks. Play it safe

Negative pressure will stop it from leaking. Just don't go overboard about it. Make sure walls are pulled in slightly. Can cut some bamboo down to size or anything similar to prevent bowing inward of tent walls. What was in the room may take a while to be filtered out, but from that point on the tent shouldn't leak much. Ensure ducting is sealed and check for pinhole leaks etc..