What are the basics of setting up a bio-active setup?
What are the list of things that you will always need, and what is an accurate definition of a "bio-active" setup (as in, what does it need to be/do to be referred as bio-active) ?
What are the list of things that you will always need, and what is an accurate definition of a "bio-active" setup (as in, what does it need to be/do to be referred as bio-active) ?