Life in an aquatic ecosystem depends not only on its active reaction (pH index) but also on the oxidation-reduction potential (ORP) or redox potential. The redox potential, or redox concentration, is...

Fish-keeping is one of the most rewarding hobbies you could have. If you are thinking about diving into this marvelous world, you might be wondering how much it could cost you. Guess what? You have...

Have you seen those beautiful plants in aquariums? They are amazing, no doubt about that. But what are they? Are they algae? Has somebody just chopped the grass in the backyard and thrown it inside...

Few hobbies can give you so much joy as fishkeeping can. Perhaps you are aware of it, and you want to make your debut in this great hobby. However, your mind plays against you when you start...

Corals have developed several unique ways to feed — they receive nutrients from symbiotic algae, catch solids such as plankton, and absorb dissolved organic matters in the water. In this article,...

In the fish-keeping hobby, getting to know your species and providing the best conditions for them is paramount. You might have come to wonder whether tropical fish should be kept in freshwater or...