An aquarium can completely change a room. Fish moving through the water, plants swaying in the current, and corals opening under the lights create the kind of atmosphere no framed “Live, Laugh, Love” sign has ever managed to achieve. What people do not always see is the work happening behind the glass. Aquariums are living systems. Water chemistry changes, algae appears, filters collect waste, equipment wears down, and fish occasionally make questionable life choices.