...when a website says a fish should live in a planted tank? Do they mean literally planted with live plants or with hiding spots? For example, a fish requiring a "densely planted" tank, would that fish be happy in a tank with no plants but lots of hiding spaces that would often be provided by live plants. I really want to make an empty tank of mine into a hardscape(it means no plants, live or not, But has driftwood and rocks for decor)and stock it with dwarf gouramis, but they need "densely planted" according to various fish care websites. Can they thrive in a hardscape?:-?