I've kept my VT Spazz in a 1.7 gallon tank. He wasn't happy.
Switched him to a 5 gallon tank, he wasn't happy.
Switched him back to a 1.7 gallon tank, he wasn't happy.
Moved him to a 1 gallon tank, and he's happy!
He adores his 1 gallon tank, its so weird!
He's exploring, he greets me more excitedly, eats more, stops chewing his tail so much. And for the first time he made a proper bubblenest!
I know most bettas prefer larger space, but he's one of those crazy bettas who like smaller tanks, go figure.