The price difference between the 6.1 gallon and 8.7 is hardly anything too. I like the height on them too. I may take a chance and order one.
But my concern still is not having a top. Without a top, certainly would have to stray from a Betta. And any fish that might be a potential jumper.
I suppose I could just have two tanks. Get an Evolve 4 for a Betta, and one of these for some other fish. Just really want a Betta for some reason LOL.