teevee, by the statement "but it is the responsibility of human beings to take care of the creatures we share the planet with, not to abuse them", I expect you'll be selling your tank? Keeping ANY fish in a glass box, regardless of size, is abusing that animal....period.
Since I'm not an extremist AND I have a selfish streak, I can live with providing what I pretend is adequate living quarters for my living decorations; since you are an extremist (self-proclaimed) and apparently feel that it is your responsibility to care for these creatures, why do you have a glass cage for them? You aren't a biologist, and you most likely won't contribute any new knowledge to the scientific community by keeping captive animals. You will learn a lot more by watching reef shows on TV and reading books about them.
Basically, you want to have a cool looking decoration with moving things in it.
Please don't take this personal, as I am attacking all hobbyists. There is so much hypocrisy in this hobby and I get annoyed by it. If the hobbyist claiming to love these creatures so much actually did, the last thing they would do is cage them in a box.
Did I get off track from the mandarin thread? Sorry
I just have some free time on my hands today....