pp. 440 illusts #0320
acrylic activated carbon addition adjust Advanced Reef Keeping airstones algae ball valve better biological filter bulb cannister carbon dioxide carbonate hardness check valves chemical clean compounds corals course cycle device dissolved oxygen drill Dupla electrode ensure equipment filtration Fish and Invert fish and invertebrates fittings float switch foam fractionnator gallon hobby Hobbyists holes hose inch install Invert Reef Aquarium invertebrates Kelvin degree light look macro-algae Marine Fish Marine Reef metering pump nitrate output overflow box oxygen reactor ozone reactor phosphate pipe pollution Poly Filter power heads pressure protein skimmer reagent recommend redox potential Reef Aquarium book Reef Tank remove residual ozone result reverse osmosis rock salinity salt water solenoid sump syphon tank’s Thiel»Aqua»Tech trickle filter tubing unit usually water changes water flow water quality water return X-nitrate