The Deep Dive on Reef Aquarium Lighting, Part 2: Lighting Technologies

I get asked fairly often what light is the best light. Unfortunately, there is no right answer. First off, there is the difference in aesthetics. That is a purely subjective decision that only hobbyists can make for themselves. Most of the time hobbyists gravitate towards the blue end of the spectrum because it is very flattering to corals that fluoresce brightly.In terms of coral biology, the type of lighting that will work the best for your tank will depend a great deal on what animals you intend to keep. As I mentioned in Part 1, corals will adapt to lighting by regulating their zooxanthellae, so most coral will grow under any of these lighting technologies. Having said that, it is also entirely possible to have some corals take on a desirable appearance while other corals become less attractive under the same light. Such is the price to be paid for a mixed reef tank

The Deep Dive on Reef Aquarium Lighting, Part 1: Zooxanthellae, Color Temperature, and Light Intensity

LEDs continue to gain a loyal following as a capable reef lighting technologyLighting is important because it directly affects how we visually enjoy the hobby and, more importantly, the vast majority of the corals in our tanks are photosynthetic. In this two-part article, we will first cover some of the basics of the light itself and then discuss the various lighting technologies people use to light their reefs. Coral and zooxanthellaeCoral as we know it is a symbiotic relationship between the coral animal and dinoflagellates called zooxanthellae. Zooxanthellae live in the tissue of the coral and are like algae in that they contain chlorophyll for photosynthesis. The byproducts of photosynthesis are things like simple sugars that the coral hosts can use as an energy source. It is for this reason that coral are often described to the layperson as having traits of both plants and animals. The color of zooxanthellae is varying degrees of brown. However, there are over 80 known varieties of zooxanthellae

Keeping The Rainbow Belly Pipefish

Female Rainbow Belly Pipefish Microphis deocata showing her breeding sail. Microphis deocata, also known as Indian Royal Green Pipefish or Rainbow Belly Pipefish, are one of very few completely freshwater pipefish species on the planet. They are a small brownish green pipefish that grow to a maximum of 6.5″. What makes this species truly unique is the brightly colored sail the females of the species use for courtship. Microphis deocata are found in the Brahmaputra River that runs between India and Bangladesh. They are a threatened species as a result of seasonal flooding within these two countries and are not commonly available commercially in the aquarium trade. There is very little information available at all on this species and so I am offering my experience with this

Reef Threads Podcast #287


3D image of a piranha generated by the Adam Summers, Univ. of Washington program.

We return for the 287th time. This week’s topics include fish breeding, Kathy Leahy, the Long Island Aquarium reef video, MACNA, anemone tanks, lionfish at Wegmens, and 3D scans of fish. Download the podcast here, or subscribe to our podcasts at iTunes. Also, follow us on Twitter at reefthreads.—Gary and Christine

Sponsor: Rod’s Food
Rod’s Food website

Long Island reef video
Two hour video of Long Island Aquarium’s epic 20,000g reef, Leonard Ho, Advanced Aquarist

Lionfish at Wegmans
Lionfish Roars Into Wegmans Seafood Departments

3D fish images
Professor seeks to 3D scan every fish species in the sea, Leonard Ho, Advanced Aquarist

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Nothing Mysterious about the Mystery Wrasse’s Charms

Mystery Wrasse (Pseudocheilinus ocellatus)Pseudocheilinus ocellatus, the mystery wrasse (aka the tail-spot wrasse, white-barred wrasse, or five-barred wrasse), is somewhat uncommon in the hobby and usually priced accordingly. But if you can get past the sticker shock for such a modest-sized fish, you’ll find this species can be a worthy aquarium candidate. Physical traitsExhibiting the banana-with-fins morphology typical of so many wrasses, this denizen of the western central Pacific reaches around 4 inches in length. Its yellow-rimmed eyes move independently and seem to be constantly appraising the goings on both inside and outside the tank. Base coloration is quite variable, commonly lavender to pinkish/purplish, while the face is yellow with purple/pink lines. The caudal peduncle is yellow and adorned with a prominent ocellus, or eyespot.