Aqua UV selection for 800 gallon system

[Tft12]

I’ve never used a UV sterilizer before. I have an 800 gallon reef system. It’s actually multiple systems plumbed together. One of the displays has had persistent Dinos for about a year - at least I’m pretty sure they’re dinos. Can anyone suggest a UV sterilizer and flow rate to me? I’ll be using a vectra pump and adjusting flow based on readings from an Apex flow rate monitor. The sterilizer I had in mind is the Aqua UV 120 watt with wiper.

https://www.123ponds.com/a00124.html?gclid=EAIaIQobChMI5rn6892N5AIVhB-tBh3kAwloEAQYAiABEgL1SfD_BwE

 

[Beardo]

That will be undersized for dinos. You should verify they are dinos and what type as UV doesn't work for all.
As far as sizing, I had to get to around 0.4 watts per gallon before I had success. A 114 watt Aqua UV on a 270g. A 57 watt had done nothing before.