Hi,
Just found this site...btw....awesome information here...Thank you all!!!
and cudos to
Welcome to Salt Corner. for the link.
Not really a poster more of a voyer!
But I do have a question. My brother has been running an 80 gal salty for 3 to 4 years now.... I prefer to call it the tank of death... he has 2 clowns and a yellow tang which seem to be hardy but other then that...anything except cleaners dies...

I am tired of him killing all the cool corals I continue to make him.
my tank has overflows and a sweet refugium. I have read in numerous places on the net about people installing external units to their tank inorder to add a refugium, never really paid attention to it because of not needing, but now that I need....lol can't find it. Although, my brother has many more issues to resolve in his death machine... I want to help him install this....could someone point me to some good info on the subject?
Thanks,
Bill