Tag Archives: corals

Latest Posts

Reef Threads MACNA Minicast, Day 2

reefthreads1 Reef Threads MACNA Minicast, Day 2 It’s day two and we have so much to talk about. Here’s a just some of what we’re seeing, hearing, and learning. Download the podcast here, or subscribe to our podcasts at iTunes. Also, follow us on Twitter at reefthreads.—Gary and Christine More: Reef Threads MACNA Minicast, Day 2More:

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

Techniques for Maintaining Calcium and Alkalinity in Reef Tanks

reef chemistry1 Techniques for Maintaining Calcium and Alkalinity in Reef TanksCalcium and alkalinity are vitally important chemical parameters in reef aquariums. They are used by stony corals to build their calcium carbonate skeletons. A lack of calcium and alkalinity in the water will inhibit the growth of reef-building corals and invertebrates, which will eventually lead to health problems. What is calcium? Calcium is one of the major ions in salt water. It is the fifth most common ion in salt water behind, chloride, sodium, sulfate, and magnesium. In most healthy reefs, the calcium level hovers around 425 parts per million (ppm). More: Techniques for Maintaining Calcium and Alkalinity in Reef TanksMore:

Posted in Corals, Fish, Invertebrates, Science, Tanks | Leave a comment

Orchid Dottyback: Hardy, Peaceful, and Just Right for Reef Tanks

fridmani1 Orchid Dottyback: Hardy, Peaceful, and Just Right for Reef TanksCaptive breeding of marine fishes has been a boon to our hobby in any number of ways, one of which is democratizing access to formerly really pricy species such as the orchid dottyback (Pseudochromis fridmani). While I wouldn’t characterize the current market price of this Red Sea species as “cheap,” it’s definitely in the realm of affordable for most hobbyists—and it’s hardiness, ease of feeding, manageable adult size, reef-friendliness, and relatively peaceful disposition (as dottybacks go, that is) more than justify the modest outlay of cash for a specimen. Physical traits P. fridmani is a small (reaching only around 2½ inches), streamlined fish with reddish-purple overall coloration and blue scale margins. A dark stripe extends diagonally from the snout upward through the eye. This species’ appearance in aquariums can vary markedly depending on the lighting scheme. Feeding You’ll find this P More: Orchid Dottyback: Hardy, Peaceful, and Just Right for Reef TanksMore:

Posted in Corals, Fish, Invertebrates, Science | 1 Comment

Reef Threads Podcast #195

reefthreads1 Reef Threads Podcast #195 A tang with attitude.This week’s podcast topics include MACNA, gluing frags, sea smells, frag tanks as displays, and buying high-end equipment. We hope you enjoy it and look forward to meeting people at MACNA and sharing what we see and hear with those who can’t attend. Download the podcast here, or subscribe to our podcasts at iTunes. Also, follow us on Twitter at reefthreads.—Gary and Christine More: Reef Threads Podcast #195More:

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

Lower Keys Coral Bleaching Report (August 22, 2014)

600stag Lower Keys Coral Bleaching Report (August 22, 2014)
Having been preoccupied with the Miami Coral Rescue Mission this summer, we finally made our first excursion to the Lower Keys this summer on Friday August 22. Sadly, we found that a distressingly high percentage of corals living on the reefs in Hawk Channel are severely bleached. Most of the staghorn corals that we saw were severely bleached or actively dying, though there were a few hardy exceptions. Nearly all of the brain corals were bone white. All over the reef we observed an unhealthy mix of cyanobacteria and algae proliferating on previously dead coral skeletons. Even the normally hardy gorgonians, corallimorphs, and zoanthids showed significant bleaching on all three patch reefs we checked. The water temperature was an uncomfortable 89 degrees on the bottom. Without strong winds or storms to More: Lower Keys Coral Bleaching Report (August 22, 2014)More:

Posted in Corals, Fish, Science | Leave a comment

Survival of the Fattest and Most Flexible Corals Amidst Climate Change

O faveolata polyps.3624d4b5 Survival of the Fattest and Most Flexible Corals Amidst Climate Change
Coral reefs are theorized to annual undergo a “bleaching” event in where corals die off as a result of ecological changes. As climate change rears its ugly head those impacts are slowly becoming a human issue. Researchers from Ohio State University have found that while some corals are whipped clean in a bleaching event others are adapting, along with their symbiotic partners, to the changes and becoming less susceptible to environmental extremes. “We found that some coral are able to acclimatize to annual bleaching, while others actually become more susceptible to it over time,” said 
Andréa Grottoli, professor in the School of Earth Sciences at Ohio State. She and her team found that by keeping a large fat/energy reserve in the cells of zooxanthellae, corals can acclimatize, and thus recover, from a bleaching even much more easily than those that do not.

Grottoli concludes stating: “We found that the research on single bleaching events is misleading. Species that we think are resilient to temperature stress are actually susceptible and vice versa when stressed annually. We’re actually a bit optimistic, because we showed that there’s acclimation in a one-year window, that it’s possible. In two of our three coral species, we have recovery in six weeks. The paths they took to recovery are different, but they both got there.” Read more here!… More:

Posted in Conservation, Corals, Opinion, Science, Uncategorized | Leave a comment

Commence Drooling Over This Amazing Favia

1e70Exclusive Corals Ultra Favia Commence Drooling Over This Amazing Favia
Setting faces to stunned! We always love sharing hot new corals, and this one is absolutely unbelievable. Arguably one of the best releases of the year, this unnamed favia comes to us via Exclusive Corals, an online retailer who recently shared the image on their Reef2Reef page. The coral sports a deep red hue, reminiscent of the war corals that found intense popularity in years past, and it is accented with the yellow, purple and neon green colors make up the coral’s “eyes”. While the details of this coral have yet to be finalized (e.g. name and price), two decent sized frags have been cut for a future availability. They both appear to have five or more mouths, which is nice considering how fragging usually goes in this hobby these days. If you’re as in love with this piece as we are, be sure to snatch up one of the limited release frags in a hurry, because we all know they won’t last long. And for the record, we’d be tickled to death if this coral went without a designer name and designer price tag. We understand corals of this caliber command a high price, but we’d love to see a shift in the status quo of coral naming back to a more old school approach…that being no fancy names for colorful corals MORE: Commence Drooling Over This Amazing FaviaMore:

Posted in Corals, Science | Leave a comment

Review: Bio Aquatek Bio-Phos 80 Phosphate Media and Reactor

bio phos 80 phosphate reactor 300x300 Review: Bio Aquatek Bio Phos 80 Phosphate Media and Reactor Anyone using chemical media on their reef system will almost certainly have delved into the wonderful world of fluidising reactors at some point. There’s something mesmerising about seeing your chosen media churning and swirling, happily doing its job. More importantly of course, fluidisation is also a great way to avoid ‘caking’ and to make sure you get the best efficiency out of your media (as opposed to ‘passive’ use, in a mesh bag for example). It’s more than likely that this research hasn’t left you with a clear ‘winner’ though, indeed uncertainties about reactor sizing, pumps, volume, construction, plumbing options and the like often result in something of a ‘hopeful’ purchase. In this review we aim to take some of the guess work out of this buying process by bringing you one of our ‘hands on’ reviews. On this occasion we have a neat little reactor that we’ve been after since seeing a demo More: Review: Bio Aquatek Bio-Phos 80 Phosphate Media and ReactorMore:

Posted in Corals, Events, Science | Leave a comment

Reefs.com 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.