I bought the API kit you recommended. I just was not sure if the results would be the same or if I should look for a different color when testing.

I currently have my pump running nonstop through bio-balls and then out like a fountain as I have in the past. I plan to hook up my air tonight as I have to find my air hose.

Should I only run the air only at night or 24/7.

I figure the fish that are in the tank will filter out some of the green as well so it may be good all around as long as my nutrient loads are ok.

The water is cooler than I like so the tilapia are pretty slow, and that may also cause some issues with my bacteria as well so I may unfortunately may have to plug in my heater to get up in the 80's.