Tang fishes

Tang fishes are part of the "Acanthuridae" (thorn tails) family.
The ones I have seen are all very colorful

The "Blue Tang" is one of the most famous because of the movie "finding Nemo".

The "Blue Tang" looks nice, but some of it's relatives look way nicer. Like the "Desjardini sailfin tang", they have nice color patterns.

As shown on the picture to the left, their fins can be really looking like a sail.

There are many different species, but they all have one thing in common.

The sharp spine on their caudal keel, it looks almost always the same color blue.

So when handling these fish watch out with your hands. You might injure yourself with it.

All the pictures are taken at "Het Arsenaal" in Vlissingen (the Netherlands).