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?
Myths are a part of life, and occur everywhere. So too in the aquarium hobby, where anecdotal observations and theories sometimes transform into facts, with little evidence to support them. We often make choices based on hearsay or "facts" presented by aquarists, who may dispense their advice with the best intentions. In some cases, unfortunately, we are misleading ourselves. In this article, we discuss some of the myths that still persist in the marine aquarium hobby today, and look at these from a scientific point of view. The take home message is that we should all keep an open mind, but remain critical towards claims that have no factual basis.
Aquarium water yellows over time due to organic decomposition. Dana Riddle analyzes the effects of this phenomenon on light attenuation and demonstrates why aquarists should strive for consistent maintenance practices.
What does a former reefkeeper do with a cache of high tech equipment? Start a high tech freshwater planted tank! Aquarist Gareth Dominy re-imagines uses for classical reefkeeping gear to create an automated 65 gallon planted aquarium that is a real showstopper.
James Fatherree explores the biology of non-photosynthetic clams, scallops, and oysters commonly encountered by reefkeepers. While most of these bivalves are not impossible to keep with advances in captive reef nutrition, their surprisingly high dietary requirements make their husbandry difficult.
Feature Article: Imitating Natural Light Quality, Intensity, and Dosage in a Reef Aquarium - Do We Really Want To?
When it comes to reef aquariums, Mother Nature has always been the de facto benchmark aquarists aspire towards. Dana investigates in great detail the quality and quantity of light over natural reefs in order to lay the groundwork to answer the age-old question: what is the best light for captive corals?