From your description, I think Flourite dark might look really nice mixed in.
It's really just a matter of your own personal aesthetics, though.
Keep in mind that if you're adding Flourite to an established tank you should rinse it VERY well first.
It's really just a matter of your own personal aesthetics, though.
Keep in mind that if you're adding Flourite to an established tank you should rinse it VERY well first.