Much of this information I will provide is condensed and more basic, but comes a from a couple of very in depth and researched articles on this subject (which readers can read if they desire a more in depth understanding). I will not address the organic chemistry aspect (the Nitrogen Cycle), which involves ammonia, nitrates, etc., rather the aspects of KH, GH, pH, mineral … [Read more...] about Aquarium Chemistry, Including Redox for Bettas & Other Fish