Dr. Jafarey, staff veterinarian at the Toledo Zoo, answers why an aquarist may experience massive fish die-off with symptoms of swollen eyes and abnormal buoyancy.
Are reefkeepers striving for the right levels of pH, alkalinity, and calcium? Using PAM fluorometry, Christie D. Raji studies the effects of high and low levels of each of these parameters on hermatypic corals in a captive environment.
When aquarist think about reef animals, cerianthids usually don't come to mind. However, tube anemones are some of the most beautiful, hardy, and long-lived organisms for captive aquariums, and they're not as dangerous to tankmates as many believe.
With their long wiry arms and exotic colors, Ophiuroids are some of the reef's most beautiful and intricate creatures. James Fatherree describes the general information and aquarium husbandry of this amazing class of echinoderms.
Richard Aspinall explores the Yasawa Islands of Fiji. He shares his amazing experience of a coral reef island teeming with vibrant, beautiful life above and below the sea.
Dana Riddle studies zooxanthallae exposed to varying intensities and colors of LEDs between 365nm (UV-A) and 657nm (red). The collected data sheds light on how different spectra affect photosynthesis and the Xanthophyll Cycle, helping us to better understand how corals use and respond to light.
Dana takes a detailed look at Tunze Turbelle Stream pumps from a more useful velocity metric instead of the ubiquitous gallons-per-hour metric our hobby has become accustomed to. Water velocity may be the key to certain corals' success.
Every educated aquarist knows about the nitrogen cycle, but how much do you really know about the nitrogen cycle? Advanced Aquarist welcomes our newest writer, Tommy Dornhoffer, who revisits the nitrogen cycle in marine aquaria in all its intricate and dynamic glory.
Last year, Dmitry Karpenko and Vahe Ganapetyan explored the science of light in the reef aquaria. They apply their previous work in this new paper explaining the theory and process of building a DIY LED fixture.
Toledo Zoo and Advanced Aquarist have partnered to provide professional advice about your freshwater and marine fishes' health. In this first installment, Toledo Zoo offers treatment information for freshwater fish exhibiting raised greyish-white lumps on their body.
Clownfish aren't the only animals that adopt anemones as their host. Surprisingly, dozens of animals regularly seek refuge in anemones' deadly tentacles. James Fatherree explores the other fish and crustaceans that associate with anemones.
When people think of symbiosis on the reef, the relationship between clownfish and anemone often is the first to come to mind. However, anemones are not the only hosts clownfish will adopt. James Fatherree explores both the iconic relationship between clownfish and anemone as well as some less conventional hosts.
Amino acids are a popular ingredient in aquarium additives nowadays, with many advertised beneficial effects on corals. In this article, I will provide some basic information about amino acids, and discuss their documented roles in coral biology. This will help the aquarist to make an informed decision about using concentrated amino acid as supplements for the marine aquarium.
The world's oceans are filled with wrasses. Richard Aspinall zooms in on Halichoeres, a genus containing many beautiful species that he regards as ideal wrasses for the home reef aquarium.
Dana Riddle thoroughly reviews the Barrier Reef Aquarium Nova A4 controllable LED light. For under $300 USD, how well does this four array, 51 LED, 100 watt, remote-controlled fixture perform?