I don't have more aquariums than that/those described above.
How I got started with aquariums.:
I think my first tank was a 15g. I was 10 years old and kept mollies, platies, danios and guppies. I also had gold fish and minnows in a livestock tank.
I lost count of the tanks I've had over 45 years.
Healthy, wet and happy
Fish I have bred:
Tropical live bearers and egg layers
Why I like fish::
They are fun to watch, relaxing and educational. There is a lot to learn and know. One can learn a lot thru careful observation. There is an art to seeing; one can learn a lot from behavior if observant.
If you have pets, be a responsible owner. Otherwise don't have them. Like children they depend on you. Learn as much as you can about them, and treat them properly.
None, we travel too much. I've raised just about every domesticated animal and a few non-domesticate