"KurtG" wrote in message ...
Pszemol wrote:
"KurtG" wrote in message
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Copepods (or similar flea like creature) swarmed around small cave
entrances,

Could be fish larvae, too...

I bet you're right.

I saw it swarming the same way in rock holes when I was snorkeling
on Maui/Hawaii or Cayman Island. Unfortunatelly did not have my
plankton net to catch them for closer inspection :-)
Next trip I will have to get one :-)))

I also saw two blue chromis during their ritual mating dance on the sand.

I did not see mating, but saw blue/purple eggs of some striped fish
on the patch of rock and fish guarding them with passion... :-)
They resembled my maroon clown pair eggs nest but it was of course
much, much larger - my fish are very small compared to the ones I saw.

I also found many black/dark blue fish with a yellow tail and bright
blue dots along it's back fin. It's about 6-8". It turned out to be a
"yellow-tail damsel". I'm starting to understand the need for
scientific names.

Yes,. in some countries in Europe they stop even using common names
in aquarium trade, just to avoid confusion. All corals/fish/inverts are called
with their scientific names, which is hard to browse for an unfamiliar :-)