I enjoyed reading of your exploits Heinz! I too like to dive with the sharks here. Hammerheads, nurse, tigers, bulls, macos and quite a few others all right here in my back yard.
I went and dove with a few friends last month. 5 Goliath Groupers (Jewish) that live in some bridge rubble that was dumped to make an artificial reef, just off our coast in 65 FT. The biggest groupers eyeball was 8 1/2" inches in diameter. These fish are such a treat to see up close!
I viewed the last photo you posted of your tank. Very beautiful!
Welcome home! I did not know you where gone, sorry.