Buoyancy Control

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Buoyancy Control is a little bit science and a whole lot of practice. Here are a few tips to help you master the skill. We have monthly classes on Buoyancy.

Note: So many factors affect your buoyancy that are impossible to control. So we do the best we can. Example would be the buoyancy of your suit. At 10 feet deep it is different than at 20 feet.  Air in your BCD (even if you think it is empty) changes volume and lift every foot you descend. How deeply you inhale, the layers you have worn, the temperature of the water, the size tank and how full it is or isn't. 

Try this in a pool.  Adjust your weights to as little as you can and still stay on the bottom. The fin pivot is when your fin tips are touching the bottom and you rise from flat on your belly to about a 45 degree angle just by inhaling. When you exhale you sink back to your belly all the while your fin tips never leave the bottom. Then practice rising and falling under control using only your breathing. Try holding still.

Now, after mastering the fin pivot, try the hover. Cross your legs, grabbing your left fin with your right hand and your right fin with your left hand. Inhale just enough to rise off the bottom. Control your breathing to try and stay in one place off the bottom. 

With another diver with you in the pool, practice the hover and pass a weight between you. So, you are hovering just fine and you are handed a 3 lb weight. You adjust by inhaling more deeply to become just buoyant enough to offset the 3 lbs. When you regain your control then you hand it back. Then 4 lbs, then 5 lbs. 

Have fun learning.

Real or Fake - Stubby

Is It Real or Is It Fake?

Answer:  Real

Googly Eyed Stubby Squid. It looks like it could be a cartoon character, but it's real. Researchers from the Nautilus exploration vessel were cruising along the deep sea floor off California's coast when they came upon the bright purple creature with giant, stuffed-animal-like eyes.  "Whoa!" they exclaim in unison. "It looks fake," one says. And those googly eyes? "It looks like they just painted them on," another says, to peals of laughter.

Clown Triggerfish

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Clown triggerfish (Balistoides conspicillum), also known as the bigspotted triggerfish, are demersal marine fish belonging to the family Balistidae, or commonly called triggerfish.

The clown triggerfish grows up to 1 1/2 feet (50 cm). Its body has a stocky appearance, oval shape. The first dorsal fin is composed of three spines, one of which is longer and stronger. It is erectile and hidden in a dorsal furrow. This set of dorsal spines composes a trigger system.  The larger spine is used to lock into rocks making it harder for a predator to attack. If you pushed on this larger spine trying to get it to lay down, you would fail. Yet if you simply and lightly push the smallest spine like a trigger to lay down then the larger ones would fold as well.

Trigger's have a varied diet and eat mostly molluscs, echinoderms and crustaceans.

The clown trigger fish is widely distributed throughout the tropical and subtropical waters of the Indian ocean and the western Pacific Ocean, however they can also be found in the caribbean as well.  It is most commonly found along external reef slopes with clear water up to depths of  250 feet (75 m). 

What's Next?

You are a certified diver - What's Next?