i'll just share what i do, we are on the same climate region so it might helpful if i share what im doing.
I have a 72x18x18 tank previously i have this indoors but after a month i transferred it to our patio where it gets direct sunlight in the morning and afternoo and reflected light at noon. the reason why i did this is i wanted to get the most optimal light level for my plants and fish, i don't experience any drastic temp changes only large evaporation about 2 gallons per day(i think). i only add aerated water which was sitting for about 24 hours. that's it. plants are growing, and fish is happy.