Davide, I was also shocked with the amount of stuff I managed to shoot in 9 days, but such is the density and variety of life there. 3 or 4 x 90 minute dives per day and excellent guiding helped. No idea when I'll get back. Just getting wet again anywere will be a start. It's been a long time.
Here's part 18 which features nudibranchs, sea slugs that have lost their protective shell, but compensate with more advanced weapons of defence.