When Should Squabbling Marine Fish Be Separated?

I recently introduced a Kole tang to my tank, and it keeps getting in fights with the resident yellow tang. So far, neither one has been seriously hurt, but I’m worried about where this is heading. Do I need to…

Marine Aquarium Problem? Don’t Panic!

Henry Wadsworth Longfellow famously wrote, “Into each life some rain must fall.” For marine aquarium hobbyists, that “rain” often comes in the form of a troublesome algae outbreak, the appearance of an uninvited pest, out-of-whack water parameters, sick specimens, livestock…