I want to upgrade to a 125 or 150 soon. I can't do a 180 at this time. To what size can an endi be comfortable in this narrow of a tank? And up to this maximum size how many can be housed in a tank 6ft by 18 inches. Thanks
its not the money. Its the space.
If you have no space now, why not settle for fish that can live happily for life in what you have now, and if/when you upgrade then think about bigger fish!