Calcium Reactors and Small Polyp Stony (SPS) Corals How are calcium reactors used and are they necessary for small polyp stony corals?
Fish-only Versus Reef Tank The pros and cons of reef aquariums.
Kalkwasser What is kalkwasser and how is it used in reef aquariums?
Macroalgae in a Mini Reef Aquarium Can I use macroalgae, such as Caulerpa and Cheato, in a mini reef aquarium?
Unpredictable Nitrate Levels Are denitrators helpful for unpredictable nitrate levels?
Orange Cup Coral or Sun Coral (Tubastrea faulkneri) My orange cup coral or sun coral does not seem to be acclimating very well to my tank and the polyps are almost never open.
UV Sterilizers in Reef Aquariums Do UV sterilizers kill important crustaceans and deplete the reef aquarium of nutrients?
Fish and Invertebrates for Your Reef Aquarium Avoid problem species when choosing fish and invertebrates for your reef aquarium.
Saltwater Attack of the Fish Ich How do you prevent a saltwater fish ich outbreak?
Saltwater Hair Algae Hair algae has taken over my live rock and smothered my corals.