Baby Blue ribbon eel, Wakaya, Fiji

In the past, I have considered these things unphotographable; the black is just so deep that I've never gotten any detail.  By cranking the exposure compensation way up, and having a darkish background that turns bright when all that light hits it, I managed to get some texture, but I still don't have the measure of these eels.

Nikon F4, 105mm f/2.8 AF Auto Micro Nikkor, TC-14 tele-extender, 2 PK-14 (28mm total) extension tubes, Aquatica Housing, 2 Ikelite 200 strobes, f/22, Fuji Reala 100.