Has anyone with a sunsun canister filter every used the UV
light on it? I didn't bother when I was setting up the tank, but now that's it's cycled and running, I was thinking about turning it on. Is it something you can leave on 24/7 or something that needs to be turned off after so long?
My tank is a lovely neon green thanks to Fungus Cure, but I was wondering after I'm done medicating the tank if I should turn it on for follow up.