Yes, Ed, you’re absolutely right!
The Good DSLR Camera body is a necessary and minimum level entry…
But not enough to taking really good Aquatic-Pictures, without the special lenses and external flashes!
BTW… Ed, Yeah,
my first Digital Camera 3 years ago…was those super technology miracle
And some of my first “naturals” shots
were of my Favorite American Cichlid – Red Oscars, Parrots, Synspilums, Discus fishes…