I don't have more aquariums than that/those described above.
How I got started with aquariums.:
I had a 15 gal tank in college with a Jack Dempsey that lived for 5 years and was as big as my hand. He was quite a character.
Not sure yet
Fish I have bred:
Jack Dempsey (by accident)
Why I like fish::
I could kill an entire day watching them swim. I love to SCUBA dive but don't have the time or money to do it anymore. Keeping an aquarium helps give me my fish/water "fix".
I'm too new to give advice, but if I was starting over with a new tank I would try a fishless "cycle", which is to say I would get my tank established before adding fish. I just established a new tank (with fish) and didn't lose any, but now that I know I probably put them through a stressful time I wouldn't choose to do it that way again.