I have my first tank and will be purchasing a new par meter to test my light, kessil a360 we. In October - November I am hoping to upgrade to a 120-150 gallon tank with T5 and kessil hybrid lights. Do you use your par meters after the initial set up? Is it a good tool to use to test the life of T5 bulbs and LEDs? I will not be changing the aquascape after the setup as I will be using mortar on it.