I live on the freshwater side of this site but I look at the
SW stuff too. I'm amazed at how much stuff I know about reef aquariums or rather how little some reef tank owners know.
I was talking to a friend with a 37 gallon reef tank. She couldn't remember the kinds of fish she had (it was a clown and some damsels), she didn't remember what the filter was called (
RO or maybe
RODI), she didn't know what a skimmer was, she didn't know why it was a good idea to have live rock, she didn't know what her lights were 8O (she had an anenome for crying out loud!), she didn't know what "hosting" was with regard to the clown and anenome (she didn't even know that they were supposed to be friends!

). She hates changing the water. I told her to sell the whole thing to me!!!!! Sheesh!!!
She spent thousands of dollars on this
SW tank and from her interests and time commitments, what she really wanted was a common goldfish in a 10 gallon tank.