I ended up purchasing the Coralife 18watt Turbo Twist UV
light because I was able to get it for about $10 more than the 9w version..
My question now is how should I plumb it and what flow rate should I shoot for? According to the directions it can handle like 500gph but their flow chart on the back says only 110 GPH
to kill parasites...
I was thinking of plumbing it inline with the return pump from the sump, which is probably 400 something gph
(I am getting a new sump in the next 3-4 months that will be larger & have a fuge that will use an extrnal return pump, at which time I plan to run the UV
seperatly with it's own pump.)
Is runing the UV
in and out of the sump just as effective as running in and out of the main tank??