This made me chuckle. Especially
6: its not "cool" or "cute" to name a clownfish "nemo" or marlin
either find a clownfish with 1 smaller fin or actually get a single microbe of creativity
Since i do have a clownfish with 1 deformed stubby pectoral fin named nemo. I wasnt about to tell my wife we cant name it nemo The more into the the tank she is the better.
But the takeaway here is : its your tank, and youre the only one who has to look at it every day. Build your tank the way YOU like it. Not the way a bunch of internet randos like it. As long as you as youre providing the right environment for your inhabitants, you do you.
Theres no drama like niche hobby drama.