Hi, my boss has a fish tank and there is appearing green strands of hair like I would assume algae. I have had fish tanks before but never seen anything like this. Could you please let me know what I should do and how to remove and stop from growing. We work in a hospital and the air conditioning is always on, and he leaves the light on the tank as well. thanks photo attached. He has gone away for 5 days and I am concerned it is only going to get worse.