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December 11th–November 17th Mitras LED and Radion XR30 Pro: comparing the color and spread on a big reef tank Scientist have capture giant squid on video and grown legs on zebrafish Ouch:…

Blue Harbor’s baby Rainfordia is irresistibly adorable

For the longest time the flathead perch, Rainfordia opercularis, existed firmly in the realm of “book fish”, a species that we know exists but which we believed we’d never see outside the pages of a book. Then in 2011 came a…

Orca Nitra-Guard BioCubes available to North America now from Polyplab

The Nitrate-reducing Nitra-Guard BioCubes have enjoyed growing use in South Africa and now American aquarists will soon be able to get some locally. The Reef-roids and medic manufacturer, Polyplab, have secure a new distribution deal with the south African based company…

Electric Eel powers Christmas tree in Utah

One thing that seems to mark the holiday season here at Reef Builders is us finding a cool story about an electric eel powering a Christmas tree. This year is no different except now we found one at an aquarium…

Martin A. Moe, Jr., Speaking Twice in 2013

We hope that Martin A. Moe Jr., godfather of marine ornamental fish breeding and author of the best selling marine aquarium book, the Marine Aquarium Handbook – Beginner to Breeder – needs no introduction. We’ll simply mention that he was…

Saltwater Fish

Philippine Dartfish- One of the world best fish for nano tank

Parioglossus, is a genus of dwarf dartfish that stay small, nice, and hardy but is rarely offered in the trade. Of all 22 species being known to science, the Philippine Dartfish (Parioglossus philippinus) is the one recently shown up in…

Friday Smorgasbord: Hobbyists save the wild reefs, bisexual fish and more

Can we get a “hellz yeah” for hobbyists doing their part to help save the wild reefs? We’ve known this for a while, but finally there is some scientific evidence that the hobby is helping to preserve reef ecosystems. A…

ORA captive bred Randall’s Assessor coming soon

Randall’s Assessor has only been available in the U.S. in limited numbers and sporadic shipments for what seems like barely a year but ORA is already on the ball with another first. Since they already held the title for first…

Ouch: Elos USA Increasing Pricing up to 10%

Elos USA, the United States arm of Elos Europe recently announced that starting in 2013, pricing would be increased by as much as 10%. The reason for the price increase? The cost of goods and labor has said to have…

Subadult French Grunts raised at the Tropical Aquaculture Laboratory. Photo by Matt Wittenrich

Saltwater Fish

Grunt Breeding 101 – Courtesy of Rising Tide

“French Grunt (Haemulon flavolineatum) is well suited to commonplace aquaculture techniques. The larvae are large at first feeding and readily accept rotifers as an initial diet. Post metamorphosis growth is rapid with juveniles reaching 2 inches in just under 3…