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Reef Threads Podcast #175

reefthreads1 Reef Threads Podcast #175

  It’s our 175th podcast, also known as the Queen’s Plasma Centennial Jubilee podcast. This week we bring you a small bucketload of semi-interesting to absolutely fascinating discussion items about the reef-aquarium hobby, including NERAC events, Long Island Aquarium, collecting shore shrimp, Todd Gardner, Richard Ross and designer/feeder clownfish, instant-cycle goop from the Tanked people, and bottled bacteria. Download the podcast here, or subscribe to our podcasts at iTunes. Also, follow us on Twitter at reefthreads.—Christine and Gary More: Reef Threads Podcast #175

Posted in Corals, Equipment, Events, Fish, Opinion, Photography, Podcast, Science, Tanks, Uncategorized | Leave a comment

Slow Life – Time Lapse

 This awesome time lapse video of coral is mind boggling.  Even though we see these behaviors in our tanks every day, we rarely get to see it in such detail and with the addition of the higher speed you can really start to understand what all of these bizarre physical forms and morphs are for.  The sponge movement is especially cool as the changes are very hard to perceive with the naked eye.  Enjoy the weekend eye candy.  Thanks for the tip, Laura and Caitlin!  More details on the movie HERE.

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MBI Species Firsts

Part of the MBI’s goal is to promote captive breeding of new species that haven’t been done before and to recognize the efforts of those that succeed. To be granted a species first award, the breeder must be able to provide proof of the date of the success via a verifiable third party publication including, books, scientific journals, online forums, or the MBI system. Extremely detailed Journals within the MBI are required for this award. When granted a Species First Award, a star medal will be applied over regular success icon to indicate that it is a Species First. The MBI Council is proud to register and confirm the following Species First awards: Oxymonacanthus longirostris: Matthew Pedersen, 20091st Oxymonocanthus MBI Species FirstsOSFFMP2 225x300 MBI Species Firsts bandensis: Richard Ross, 2007 Sepia bandensis 1st MBI Species FirstsTFH 5 of 6 300x199 MBI Species Firsts you have proof of success for a species that has not been done before please fill out a journal and reports for your work and submit a request for a Species First here:

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Saltwater Confessions: Bizarre Marine Aquarium Blunders

aquarium blunders1 Saltwater Confessions: Bizarre Marine Aquarium BlundersAfter many years in the marine aquarium hobby—I’m not talking Paul B years here, but let’s just say a reasonable length of time—I like to think I’ve acquired a certain degree of wisdom with respect to keeping saltwater organisms. What I don’t care to admit is how much of that wisdom was actually gained as a result of making really strange and downright inexplicable blunders from time to time. Some of these are too dark and horrifying to recount here, but I’d like to share a few of the less-mortifying ones so other salties out there can benefit from my experiences—or at least avoid making the same sorts of mistakes I’ve made. (Note: some details may have been changed to protect the innocent—or to make me look like less of a moron.) More: Saltwater Confessions: Bizarre Marine Aquarium Blunders

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The Houdini Octopus

Octopus are extremely intelligent and well known masters of escape in aquariums. Monterey Bay Aquarium Security Officer Clara Nilsen saw what she thought was a banana peel in front of the reef exhibit. Upon closer inspection, Nilsen realized it was actually an Octopus rubescens.oct 1 The Houdini OctopusUpon seeing a slime trail leading back to the Shale Reef pool, Nilsen placed the octopus inside the reef. As it turns out, the octopus was not part of the reef pool and Nilsen was actually the first person to see the octopus. The aquarium staff believe that the octopus must have come into the aquarium as a juvenile, by hiding in a rock, and matured in hiding.  The octopus eagerly awaits the opening of  the highly-anticipated “Tentacles: The Astounding Lives of Octopuses, Squid and Cuttlefishes” exhibit opening April 12.  MORE Source: Monterey County Weekly by David Schmalz

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Attention: European Aquarists

Aquarium tank public domain 300x185 Attention: European AquaristsEurogroup for Animals (based in Brussels) is asking MEPs, ahead of the May elections, to sign a pledge to work towards banning the import of wild caught animals OATA (The Ornamental Aquatic Trade Association) Chief Executive Keith Davenport sees it as the hobby being under threat: “Taken to its logical conclusion this would mean if you want to keep tropical marine or freshwater fish, corals, soft corals or other invertebrates you might as well forget it. All of these are either wild-caught and/or exotic, which means they’re not native to the UK, so they would no longer be available to buy.” OATA is urging keen fish keepers to contact MEPs to urge them not to sign the Eurogroup for Animals pledge.  A special #handsoffmyhobby campaign has been launched to get passionate aquarium hobbyists to shout about what they love about keeping fish. We’re all for keeping the hobby going, but at what cost? Is this pledge not a step in the right direction?  Should exotics be included in the pledge?  Should they not rather say that all exotics should be captive bred?  Why not tell them what you think.  Have a look at: for more.

Posted in Conservation, Corals, Fish, Industry, Invertebrates, Opinion, Seahorses, Tanks | Leave a comment

Brood Stock Management, Spawning and Egg Collection of the Purple Masked Angelfish (Paracentropyge venusta)

P.+venusta+female+showing+precaudal+band+31914+photo+by+Leighton+Lum+3 Brood Stock Management, Spawning and Egg Collection of the Purple Masked Angelfish (Paracentropyge venusta)
Paracentropyge venusta were identified as a good candidate for captive breeding since they often do not adjust well to captive life after being collected in the wild. A juvenile pair from Japan was established for broodstock. The immature fish were introduced to each other during quarantine. Due to the timid nature of this species, quarantine was a dark blue barrel with black plastic pipe provided as hiding places. Male P. venusta. Photo credit: Leighton Lum. The pair is housed in a 440 liter tank with a foot print of 122cm by 46cm and a height of 76cm to provide room for a spawning rise. They are housed with a pair of Red Sea Regal Angelfish, Pygoplites diacanthus and a single Multibarred Angelfish Paracentropyge multifasciata. Feeding occurs at least 3 times daily with a varied diet of frozen clams, table shrimp, Mysis shrimp, krill, Artemia, commercial frozen and dry food and nori. The mature male now measures 8.5cm total length; the female is slightly smaller at 7.5cm. The female has a 1-2mm, pale colored band at the precaudal region of the body. This band is present in small juveniles and may be a simple trait of sexual dimorphism for this species. Spawning began when the pair was just over two years of age.  Initial spawns were small and infrequent.  During the summer of 2013, spawns became increasingly larger with a higher fertility rate although still on an irregular cycle.  Spawns are now more regular and vary 300 to approximately 1000 eggs.  Pre-spawning chasing activity generally begins around 7:00pm which is 2 hours before lights out.  Spawning normally happens within 30 minutes of lights out. The eggs are approximately 700 microns in diameter with a single oil drop. They are positively buoyant and float at the water surface.  The eggs are then collected using a 500 to 600 micron mesh net. They are placed in a container with water from the broodstock tank and allowed to incubate over night without aeration.  Once the eggs begin to develop, the embryo becomes heavily pigmented appearing quite dark as compared to other angelfish eggs. This makes them easy to see and count. Fertile eggs hatch 16 hours after spawn at 27C. Special thanks to DJ Lineham of Tropical Fish Emporium for broodstock acquisition and species information. MORE:Brood Stock Management, Spawning and Egg Collection of the Purple Masked Angelfish (Paracentropyge venusta)

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Blackworms Mean Better Health for Marine Fish

blackworms tank 300x205 Blackworms Mean Better Health for Marine FishLive worms are about the best thing we can feed to our fish. How do I know this? Am I just making it up so I have something to write? Actually, no. Live California blackworms have been used for ornamental fish food since a few years after World War II, as that is when I started feeding them to my freshwater fish. Blackworms will get freshwater fish into spawning condition in no time, and I can attest that the same applies to saltwater fish. Back in 1971, when I started in the saltwater aquarium hobby (I think it was on a Tuesday), I bought some of the first blue devils imported into the US. More: Blackworms Mean Better Health for Marine Fish

Posted in Corals, DIY, Fish, Opinion, Science | Leave a comment is the world's leading destination for sustainable coral reef farming and the aquarium hobby. We offer a free open forum and reef related news and data to better educate aquarists and further our goals of sustainable reef management.