I added one to the SeaChill TR20 chiller I ordered Saturday night. I'm a little worried about that option though because I don't know if I can control how long it is on. I've heard that you don't want to run it all the time because you can actually kill off the "good" bacteria too.
I have an Aqua UV 25W (with wiper) that I run 24 hours a day on my 90 gallon reef tank. I have the water pumped through the chiller and returned through the UV. It has been working great for me. I have not had any issues with algae, and all of the corals and fish appear very healthy. IMO, it does a great job.
Does anyone have an opinion on whether UV-Sterilizers have ill effect on using DT's Phytoplankton? Should one turn of the UV for a few hours while feeding? and, what about the skimmer...shouldn't that be off too?