Bioballs only has the ability to convert nitrates to nitrate, not any further in the nitrogen cycle. What most peopme seem to lack and can't get enough of is bacteria that convert nitrate to nitrogen. Bioballs don' t do that. Live rock do, as well as matrix. So what is the point of bioballs? It only takes up space, and I read an article here that someone ment it also competed with the liverock that takes the nitrogen cycle all the way to nitrogen, meaning a total of more nitrates in your tank...
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