UV question

[ZANYMASTER]

How do you guys adjust the flow on it?Fast or slow?

 

[Cu455]

I have a 36 watt coralife I run with a 400gph pump. The sterilizer came with a chart that has recommended flow rates for the purpose you are using it for. Slow flow is for parasites.

 

[Cu455]

Here is the graph for my sterilizer.

 

[Dan_P]

The longer that water stays inside the sterilizer, the longer the organisms are exposed to UV. Just like your skin with long exposure to the sun, more damage is done with increasing time of exposure. Your sterilizer should have come with a recommended flow rate.