I am just wondering does 8w UV kill parasite like fluke. I have 8W UV inlining with Eheim 2125 Canister. But I am still having problem with fluke.
Here is the product that I have.

filter

UV sterilizer

Thanks.
Fred

I have just read the info on your UV steriliser and it says its suitable for a tank of up to 200 gallons.Have you put aquarium salt in your tank if not it may help to salt up to 0.3% as well as using your steriliser.Dissolve 1 teaspoon per gallon of aquarium salt repeat again 12 hours later then another 12hours after that achieving the required 0.3% Always dissolve salt in some tank water you have removed never add straight to tank.Hopefully salt combined with your steriliser should work

Thanks, I already have .3% salt in the tank and fluketab. I am just concerning is it good enough regarding to flow rate and everything.