Category: About water quality

Water quality is the most important factor affecting fish health and performance in aquaculture production systems. Good water quality refers to what the fish wants and not what we think the fish wants. This means that we must understand the water quality requirements of the fish under culture very well. Fish live and are totally dependent on the water they live in for all their needs.

Different fish species have different and specific range of water quality aspects (temperature, pH, oxygen concentration, salinity, hardness, etc.) within which they can survive, grow and reproduce.

Within these tolerance limits, each species has its own optimum range, that is, the range within which it performs best. It is therefore very important for fish producers to ensure that the physical and chemical conditions of the water remain, as much as possible, within the optimum range of the fish under culture all the time. Outside these optimum ranges, fish will exhibit poor growth, erratic behaviour, and disease symptoms or parasite infestations. Under extreme cases, or where the poor conditions remain for prolonged periods of time, fish mortality may occur. Pond water contains two major groups of substances.

Aquarium pH

By Madhu Soodhananof India Whenever one surfs the net or refers to a book about fish-keeping, pH would be a short-listed, important point of concern. Many of us have read articles/books saying fishes are...

Calcium reactor

Calcium Reactor A calcium reactor is sometimes referred to as a kalkreactor, kalkreaktor, or even just a lime reactor. Although many other hobbyists have developed DIY versions of these reactors, Daniel Knop is often...