I don’t see it being a problem, but im
No expert with UV. If your trying to treat algae or ick or something- the flow rate is important. What does the factory recommend for that uv?
It all really depends on what you want the UV sterilizer to do in your tank. The flow rate of 210 gph might be a bit much, but it will still help. Just keep in mind that the UV will only kill things that are exposed to it.