little brown spot

Hello. Don’t worry about that right now. It’s a great thing you care - but if you find yourself obsessing over scanning every leaf and identifying any imperfection you will drive yourself nuts and likely over correct for a non issue. Just relax, know that cannabis is an imperfect plant and sometimes there are weird things with the leaves that have nothing to do with nutes, environment, etc. That said - don’t be afraid of asking questions here when you have one. If you see other forms of leaf damage throughout the grow post them here. Some pest issues arise and affects leaves. Those you’ll want to jump on asap, but I don’t believe that to be the case here. Good luck