Tag Archives: beautiful

Latest Posts

Reef Threads Podcast #201

The comb jellie Deiopea kaloktenota, photographed by S. Haddock, jellywatch.org.We didn’t quit at 200. We’re back for more. This week we talk about equipment redundancy and backups, pyrosomes, comb jellies, refugiums, and buying animals online. Don’t forget to go to our Facebook page and tell us how you listen to the podcasts. The standout entry will win a free Coral magazine subscription. Download the podcast here, or subscribe to our podcasts at iTunes. Also, follow us on Twitter at reefthreads.—Gary and Christine Covering your butt Pyrosomes Comb jellies Refugiums
Posted in Corals, Equipment, Fish, MACNA, Opinion, Photography, Podcast, Science, Tanks, Uncategorized | 1 Comment

Giant Barrel Sponge, Xestospongia muta

Good morning friends, this is for those of you just sitting around wondering what is the largest sponge species in the Caribbean. Well, it’s the beautiful “Giant Barrel sponge”, Xestospongia muta and no two are alike. I found this glowing red giant on wednesday at 90 feet east of the Substation and it stands about five feet tall, pretty incredible!! During the day the sponges are home to crabs and shrimps, and all kinds of fish swim in and out of them, they are truly one of my favorite sea creatures!
Posted in Contest, Corals, Fish, Photography, Science, Uncategorized | Leave a comment

Blue-Light Photos, Blue-Light Photography

Good morning friends, I’m trying hard to wake up this morning after a late night out playing under the sea. I always try to do night dives later in the evening as you will see way more stuff the longer you wait. Last night I entered the watery darkness at 8:30 and didn’t get out till quarter till 10:00 and yes, I was a bit frozen! I have started a new weekly routine and that is to start doing one blue-light/fluorescent dive a week and it’s looking like wednesdays are going to be that day. For those of you new to the blog blue-light diving is where you use a yellow filter over your camera lens and place blue-filters over your flash strobes, this combination produces wild fluorescent colors that you will never see with normal white light
Posted in Corals, Fish, Photography, Science, Uncategorized | Leave a comment

Ikelite VEGA Video Lights, Underwater Go-Pro

Good morning friends, I apologize again for the late blog  but I have been under the sea most of the morning. I spent the morning getting ready for a dive with our friend Tessa (above) who is here currently doing research at the Dolphin Academy. So, since we were headed out to a beautiful reef I gave her my brand new, state of the art, Ikelite setup designed especially around the GoPro. This sweet little baby has two ultra powerful VEGA lights, a beautiful red aluminum tray and two cushy grips to hold onto, I mean really can it get any better than this?? Shooting professional quality underwater video’s used to be so far out of reach because of the cost involved, not anymore folks!
Posted in Corals, Fish, Photography, Science, Uncategorized | 1 Comment

Rare, Deep Sea Octopus, Octopi, Cephalopod

Good morning readers, feast your eyes on this tiny little octopus sp. found yesterday with our manned submersible at 640 feet!! He was spotted by the Smithsonian Institution walking around on the sand and at first glance they didn’t know what it was as it looked like a hermit crab from a distance. This beautiful little cephalopod is less then 3 inches in length (with arms out) and was flashing all different colors as we watched. Notice the brilliant blue stripes along the arms, talk about one sexy looking sea creature
Posted in Corals, Fish, Invertebrates, Photography, Science, Uncategorized | Leave a comment

Larval Rearing of the Purple Mask Angelfish

3 day old P. venusta larvae.  Photo credit: Karen Brittian. Larval rearing trials began with the spawning of a Paracentropyge venusta pair in the summer of 2013. The first successful larval rearing trial started with a small spawn on November 13, 2013.  This was the fifth larval run with this species and the focus was on food density and consumption at different developmental phases.  The diet consisted of both cultured copepods and wild collected plankton with all food items being less than 100 microns in size.  To assess consumption rates, five random samples were taken for initial food counts at the start of each test period. All food items added to the larval tank during the test period were counted while maintaining a density of 1 to 2 food items per ml in the water column. At the end of the time period counts were again done to determine larval consumption. At this point a 75% water change was carried out. I was surprised at the amount of food these little larvae could put away and as an example, at day 28 post hatch the larvae consumed approximately 2,150 food items each over a 12 hour period, (5:00am to 5:00pm). 32 day old P. venusta larvae.  Photo credit: Leighton Lum.   At one month of age the larvae started targeting larger prey items and ignored the food items less than 100 microns in size. At this point newly hatched and enriched Artemia were added to the diet along with adult cultured copepods.  The larvae also began to display benthic behavior by associating with the corners of the tank, the air stone and airline tubing.  A piece of dried coral rubble was added where the larvae took shelter.   The larvae continued to grow and develop; they were moved into a growout tank at 57 days old.  At this point we had 17 larvae remaining which equates to 6% survival from hatch. The development of juvenile colors came slowly. On day 95 they had black pigment on parts of their fins and tail.  A month later at 130 days old they were the beautiful blue and yellow of the adults. 115 day old P. venusta juvenile.  Photo credit: Leighton Lum.  Larval rearing of this species proved relatively “easy” in their first few weeks of the larval stage after which point larval development and growth seemed to slow. This could be attributed to the type and amount of wild plankton collected and fed out at that time. I feel that the larval phase could be shortened and improved upon in the area of diet. After metamorphosis the larvae were again slow to develop with a reluctance to accept non-living food items and this is also another area for improvement. The Reef Frenzy and Herbivore Frenzy frozen foods were the first choice of the juveniles when they began to accept non-living food. Currently these juveniles are fairly bold and are consuming frozen and dry foods with gusto.
Posted in Conservation, Fish, Science | Leave a comment

CORAL Feature Video: LED-Lit 120-Gallon Reef

http://www.youtube.com/watch?v=2FHlDak_OX8 Credit Beautiful Coral Reef Aquarium LED HD Sony HDR XR260 handycam By KODEBLUE24 | YouTube This is a 120 gallon reef aquarium. I am using two Taotronics 120 watt fully programmable led fixture. My system started out as a 55 gallon tank a year and a half ago, then upgraded to this 120 gallon tank using my 55 gallon tank as my sump filtration in my basement. I use a large protein skimmer, biopellets and an algae scrubber to control nutrients. With my setup I never do any water changes and supplement all elements. Music Gavin Mikhail Piano playing Mumford and Sons “I Will Wait”
Posted in Fish, Science | Leave a comment

1000 Steps Bonaire, Bonaire’s TOP Dive Sites

Good morning friends, it’s finally Friday!! For many of you this is the start of nice, long overdo holiday and time to get out and do some shopping! We have Wednesday and Thursday off next week and we are trying to plan some epic adventure that would include the dogs, like leaving early one morning and heading to the West end of the island for once. I received a bunch of questions about diving in Bonaire from some friends this week and as usual the main question is; “what is the most popular dive site in Bonaire”?? Well, I will have to say as far as being the most popular dive site and the most visited it would have to be 1000 Steps!!
Posted in Conservation, Corals, Fish, Photography, Science, Uncategorized | 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.