usually every other week water change, onthe water change i do 30-40% water, with the gravel cleaner. Then i clean the plants if needed and driftwood, when i start to refill the tank i put in the appropriate amount of cycle and prime, i add the salt. then i just fill the tank back up and turn the lights off give it some time to clear up and feed them? as far as testing goes for ever i have never owned a test kit until just recently my buddy let me borrow his after my two fish died