Category Archives: Corals

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Funny Parrotfish

Good morning friends, I have another funny fish face for you all today that was again taken during the day but looks like it was taken at night. I always try to use a much higher f-stop like f-16 for instance to darken the backgrounds which helps to eliminate distractions keeping the focus just on  the animal. And, the higher f-stop will give you much more detail, you just have to add more light when shooting. I believe this is a Redtail Parrotfish because of the black blotch at the base of the pectoral fin but I have been wrong before! Like all parrotfish they have the most unique and comical facial expressions, it’s trying to get them to look at the camera that is the hard part! Here is Curacao we have so many different parrotfish with names like….

Vertical Carlson Surge Device

Vertical Surge Device

Vertical Surge Device

 Space in the coral troughs is always at a premium at the ReefGen coral farm, and we all agree that water flow is one of the most important aspects of coral care. When one of my troughs has an area of inadequate flow, such as this Acropora grow out system, it starts under-producing. I needed to build a unique surge device to provide more flow to the stagnant corner, as well as create a chaotic alternating current for the Acropora located downstream.… More:

Bogas Fish Ball

Good morning friends, after photographing the sub yesterday and waving goodbye I swam over to my giant school of Boga’s and joined them for around 15 minutes. These fish are so amazing and always the highlight to any dive! Instead of swimming away in fear they always swim to me then surround me allowing me to join their school. They seem to have no fear of the camera or the flashes thus allowing me to snap away at my leisure, it’s a total blast!

Chengdu’s Cube Oceanarium Sets a Record

chengdu aquarium 1-reefs
Opened on New Year’s Eve, Chengdu’s Cube Oceanarium (a public aquarium) is an beautiful, educational wonderland located in Seaside City in the JiaoLong Port. The recently completed project has been awarded not one, but two Guinness World Records – one for the world’s largest window and one for the world’s largest aquarium window. chengdu aquarium 4-reefsMore:

School of Snappers

Good morning friends, it’s finally friday!! I have a beautiful school of snappers for you all today that we found living under a remote pier, or at least what was left of it. I know when most of you hear the word “snapper” your mouth starts watering and you immediately associate this with dinner but for me it means keeping them safe and enjoying the time I spend with them underwater getting to be part of their aqua world for just a few minutes. Most of the time when I find these large groups of fish I just stop and chill in hopes of showing them that I come in peace and just want to take a few photos and most of the time it works. Most diver are in such a rush that they don’t have the time to stop and smell the fish thus scaring them off immediately and I can tell you from experience that chasing fish doesn’t work either, they will win every time!

Boxing Clever: Engineers Draw Inspiration From Bulletproof Boxfish

Publishing their findings in the July 27 issue of the journal Acta Materialia, engineers at the University of California, San Diego have described how the body of the boxfish Lactoria cornuta could serve as inspiration for improved armour, robots and even flexible electronics. The boxfish joins other reef organisms such as seahorses and stomatopods being studied for such purposes. Drawing its strength from hexagon-shaped scales and the connections between them (similar to the connections in a baby’s skull) the boxfish’s body features a unique construction in which each scale, or scute, has a raised, star-like structure in the centre that distributes stress across the entire surface. In addition, there is an underlying, flexible layer of interlocking collagen fibre which is difficult to penetrate. In combination, this means that even if a predator managed to generate a crack in the outer layer, the collagen fibres would help to prevent the structure from failing. “These damage-resisting structures have evolved for millions of years in nature and are being studied with support of the U.S.

Synthetic Coral to Clean the Ocean

synthetic coral 4

Photo credit: Paul Nicklen

 Coral, with its porous nature and curled structure, is extremely efficient at absorbing toxic heavy metals; deadly poisons. The mercury that is polluting our oceans is contributing to massive coral die-offs, and is building up in the food chain, eventually resulting in toxic fish. According to the World Health Organization (WHO), between 1.5 and 17 in every thousand children living in selected subsistence fishing populations showed cognitive impacts caused by the consumption of fish containing mercury. Coral’s remarkable ability to absorb heavy metals inspired researchers at Anhui Jianzhu University in China to create nano-sized, coral-like structures that use aluminum oxide to absorb mercury out of the water. The team, led by Dr. Xianbiao Wang, published their procedures and findings this week in the Journal of Colloid and Interface Science. They outlined their process for creating this unique structure, which they found to be about two and a half times more effective at absorbing mercury than traditionally structured nanoparticles –  49.15 mg/g vs.19.56 mg/g.… More:

Reef Threads Podcast #239


Is it smart to quarantine several fish together?

This week’s podcast chit-chat topics are the reef side of Gary’s bicycle trip, collecting wild food, quarantining multiple fish, DC pumps, pipe organ care, and what we’d pay for fish and corals. 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

Multi-fish quarantine
Is It Okay to Quarantine Multiple Marine Fish at Once?, Saltwater Smarts

Splash-free surge tanks
Finally, a surge tank without the noise, bubbles, space, or plumbing!, LobsterofJustice, Reef Central

Pipe organ coral
Pipe Organ care, GOSKN5, Reef Central

Paying the most
What’s your max fish price?, 3FordFamily, Reef2Reef

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