LOL.
Steep learning curve, but once you get it, it's very rewarding. Not nearly as difficult as keeping, oh, I don't know, "hots?"
Well maybe keeping "hots" is easier, but you have a little more margin for error with fish.
I'll stick with my crew, including Lincoln, and leave the danger noodles to others.
My point here, Boger, is that you can probably do whatever you set your mind too.
I will add that even having "just" Lincoln in my office has already been relaxing and very Zen for me. He's very calming and fun to watch.
It seems many people jump into keeping fish and do not do the research and they and the animals suffer because of that. We see it with reptiles as well, but reptiles are generally more resilient and quicker to correct mistakes with.
Add a thermostat! Up the temp 3F. Bump humidity. Feed a smaller meal.
With fish, a tank that isn't setup and maintained properly can be a lot of work to correct. Usually, if's gotten that bad in the first place, the person who is attempting to maintain the tank doesn't have the knowledge or ability to fix the issue.