What parameters do I need to watch when setting up/cycling a new tank with plants?

I have a test kit, but I don’t know if it’s relevant until I have fish. I want the plants to do okay, and so far they are after ~5 days in here. I think nitrates are important for them? And PH is important. Anything else I need to watch out for?

I have a test kit, but I don’t know if it’s relevant until I have fish. I want the plants to do okay, and so far they are after ~5 days in here. I think nitrates are important for them? And PH is important. Anything else I need to watch out for?