Personally, I would always go with the tank that offers the most horizontal swimming space, especially with a sorority where you don't want the females to be forced into close confines every time they come up to the surface to breathe or feed.
That's what I was thinking too, I'll sell the 25 and get a 20 long, thanksPersonally, I would always go with the tank that offers the most horizontal swimming space, especially with a sorority where you don't want the females to be forced into close confines every time they come up to the surface to breathe or feed.