I’ve lived with fish for almost as long as I can remember. When I was a child, we had a goldfish pond outside, and a tank with tropical fish inside. Since then I’ve usually had at least two tanks in the house. Currently we have a 6′ marine tank and a small tropical tank.
In the marine tank, water quality is so important, and filtration is even more important than frequent water changes. Because of our high water quality, we have maroon anemonefish Premnas biaculeatus that are more than 20 years old,
and two citron butterflyfish Chaetodon citrinellus that are 18 and 17 years old. One has had what looks like scar tissue for at least 10 years, but nothing has developed from it.
I have two favourite groups of marine fishes: butterflyfishes and angelfishes. We have a threadfin butterflyfish Chaetodon auriga,
a dusky butterflyfish Chaetodon flavirostris,
a flame angelfish Centropyge loricula,
and a keyhole angelfish Centropyge tibicen.