Uv flow rates?

[TLO45]

I’m curious what UV users run for flow?
I have a 375 gallon display with roughly 450 gallons total in system. I run a Pentair 80 watt UV unit and am wondering what flow rate is recommended?
I’ve found generally speaking 3-4.5 times total tank volume per hour.
I’m looking for algae, parasites removal which I know varies greatly from one to the other but for general use I’m curious what is recommended?

 

[theMeat]

You have to size the wattage to the tank, and wattage determines the gph. Check this out

If you want to sterilize ich and such it needs more time/exposure = less gph. If you only want to kill bacteria and such it doesn’t need much exposure = faster/more gph