Something that has not been mentioned is that big extra buoyancy control device you have....Lungs!
Depending on you depth of breathing, or relative inhale vs exhale rate can change you buoyancy a lot. (But do NOT hold your breath)
This is especially so as a beginner before you learn to move efficiently and relax underwater.
So part of better buoyancy is just becoming a generally more experienced diver.
Shallow water, 15 ft or a swimming pool is a good place to practice.
For the physics geeks: One thing the instructors never tell you is that correct buoyancy at any depth is a state of unstable equilibrium.
If decrease you depth a little, the pressure is less, BCD expands and you tend to go up more.
The opposite if you increase your depth a little.
So there is buoyancy control is a continuous process on any dive, but after a while the reactions become automatic
and you anticipate better.
Yoga helps with breath awareness.
Depending on you depth of breathing, or relative inhale vs exhale rate can change you buoyancy a lot. (But do NOT hold your breath)
This is especially so as a beginner before you learn to move efficiently and relax underwater.
So part of better buoyancy is just becoming a generally more experienced diver.
Shallow water, 15 ft or a swimming pool is a good place to practice.
For the physics geeks: One thing the instructors never tell you is that correct buoyancy at any depth is a state of unstable equilibrium.
If decrease you depth a little, the pressure is less, BCD expands and you tend to go up more.
The opposite if you increase your depth a little.
So there is buoyancy control is a continuous process on any dive, but after a while the reactions become automatic
and you anticipate better.
Yoga helps with breath awareness.