There are several species, and I'm veeeery far away to be a proficient fish identifier.
Me neither. I just enjoy the wide variety of swimming fish. The photos are not bad for a €30-40 EUR camera. Sometimes I watch videos of fish swimming in an aquarium, and it gives me a relaxing, calming feeling. I rarely see aquariums in real life, and I have not swim with the fish in real life at all so far (I cannot even swim, but I tried to learn it as a child, but somehow I could not learn it).
Diving and seeing the underwater world in real life is probably an amazing, exceptional experience ("heaven", as you wrote).
Have a nice day and have a nice weekend.
All the best. Greetings and much love from Hungary.
No doubts there. Thanks for the visit! !PIZZA