20150428 Hawaii Vacation- Waikiki Snorkel

Two weeks ago I revisited my dream destination- Hawaii. And once again we decided to only stay in Oahu as we have not enough time to explore all we wanted to see in our previous visit. But we did recall the wonderful snorkeling experience so we have specifically carved out time to snorkel in various coast lines this time.

The beautify, relaxing white sand of the Waikiki beach at Honolulu, Hawaii

First and foremost we went to the most accessible- Waikiki. It is amazing that with all the tourists, surfing, kids playing, and motorized boats in the near vicinity the Waikiki reef ecosystem remained in a very strong state. The amount and variety of fish in the near shore reef actually had significant increase since our last visit 9 months ago. We were able to see most of all the common species of tangs and wrasse along with a few that would have only appeared in the deeper water previously, but now are also living among the shallow reef. I used only an iPhone 5S with an otter case to shoot these underwater photos.

A goatfish and a two spot surgeonfish patrolling the shallow reef of Waikiki

Really healthy reef system with active growing sps coral such as this porcillapora colony here near shore Waikiki

Moorish idol feeding among the coral reef. Interesting observation: I visited the same area a few days in a row and found that the same group of moorish idol stays within a specific area, no larger than 1000 square feet and feeds only in that area.

Beautiful spotted box fish along the reef edge in Waikiki

A semi adult nano tang, what a magnificent creature and graceful swimmer in the wild.

Water clarity wasn't the best as the waves were quite high that day sweeping up lots of dust from the bottom. 

2014-06-01 Species Spotlight- Desjardini Tang

Tangs, or surgeon fish, are among the most popular for community reef tanks. Not only most of them do not grow of an exceedingly large size, they are beautiful, mostly hardly, and also utilitarian since they are algae grazers in nature and does not harm invertebrates or corals.

If one asks for my opinion on the most beautiful tang in the world, there is no doubt my answer will be Desjardini Tang (Zebrasoma Desjardini), also known as the Redsea Sailfin tang.

They can sometimes be confused with their closely related cousin, the Sailfin Tang (Zebrasoma Veriferum). However, upon close examination, you can see they are distinctively different, especially as they age. Here are a couple links to general information and a sample photo for comparison:

Desjardini: http://www.liveaquaria.com/product

Sailfin: http://www.liveaquaria.com/product

Like all other tangs in the Zebrasoma family, this fish is very hardy, active, and display lots of personality. However, you should also follow the general rule for tangs- do not keep multiple of them unless they are introduced at the same time, and also that there is adequate room for multiple- which comes the catch for this fish- they get BIG.

Among the commonly available surgeon fish for sale in the North American aquaria, this fish definitely ranks among the top 5 in adult size (among the larger tangs in the trade: Vlamingi, Naso, Sohal, Clown, and Orange Shoulder Tangs) The Desjardini Tang can reach up to a foot and a half in length. And when this fish fully extends its dorsal and anal fins, it is the tallest Tang in the trade (see illustration below)

For the sake of its size, please do not consider housing this fish unless your tank is at least 120Gallon (with lighter bio load), and no smaller than 180 gallon if you plan a fish-packed tank.

Besides full-reef quality water parameters, you must also provide ample vegetable matter for this herbivore to dine on (warning, you might hear many reef hobbyists suggest clipping terrestrial vegetable such as lettuce for tangs to eat, this might actually harm them as land vegetables are far less nutritious in the amount of mineral and amino acid their marine counterparts contain). 

Also you do not need to spend big money purchasing marine algae to clip on like this: http://www.drsfostersmith.com/product

Just visit a local Asian grocery store and puchase the Nori (seaweed) sheets used for sushi wraps. It's the exact same stuff but 10 times cheeper.