Hey guys i just got a 9w IM drop in UV sterilizer for my nuvo 20g tank. I added it last night to help with some what I believe is a dino outbreak and some GHA that is also growing in my tank it isn't bad at all it only comes out in places where I don't get enough flow in the tank i have turned the flow up in my nero 3 and it seemed to help. My question is how long should i run the UV sterilizer for 24/7? or for a certain photoperiod? the instructions don't say for how long i cant find anything online saying how long it should be left on for if someone could please help id apricate it thanks.