Sigh...I had forgotten the trick to embedding YouTube videos! Thank you, it's fixed now, I think!
I saw some really cool behaviours by some pipefish at the start of the dive. The Backscatter Macromate is key to getting shots of stuff like this with the GoPro and I think it should be considered required equipment for any GoPro users at BHB, but it has a shallow depth of field and unless you set the field of view to narrow, slightly blurry corners, so it isn't easy to capture moving fish in focus.
You can watch the jawfish go in and out of focus as he moves through the depth of field, and he's fast! Even slowed down to half speed or less. Then again, if I end up with a mouthful of sand, I'd spit it out fast too!