I fell into that trap once...

Started with a 55 gallon tank then added a couple 100s and a 26 bow front. Then put a 20 gal at work on my desk. I did fantasize about a custom, large tank.

Then I bought my own house that required some fixin' and downsized eventually to zero.

I'll probably get another tank at some point because it was so peaceful to watch the fish. Maybe incorporate aquaculture into homestead for different reasons.

I raised various types of mostly south american cichlids because their behaviors were interesting and they had quite a lot of personality for fish. Always good entertainment when my cat pickles would dip her paw into the tank with a feisty 7" labiatus...