Hi All Im a newbie to the marine tank. I just purchased a tank from a friend. Its a 95l reef tank. The tank is running two powerheads, 4 t5 lights. Two pumps which of 1 runs into skimmer and other back into tank.Have a heater and an electric termometer. I have about 10kgs live rock, crushed coral as a base. Thank has a clown, pajama cardinal and a yellow tang. I have some Mushrooms and some zoas. Tank has been running the crrent setup over 2 years. Any advise on how to make sure the tank is running smoothly?