Those pots can allow pests in and I’m not the biggest fan but they do work. If your tent humidity is too high you’ll need a dehumidifier in the room the tent is in and constantly exchange the air. Flood and drain tables with work well with pots like Rain Science has. https://rainsciencegrowbags.com/

It’s never too late to remove lower shaded growth.

Anything with a compressor needs to set upright for at least a day to make sure the oil has settled. You can not run a compressor on it’s side or upside down.