Why Water Change or No Water Change

Water Change in a marine aquarium or in this hobby has always been a debatable topic and here we jump in the topic. Being in the trade we are always doing water changes that is what we have noticed. As soon as we start getting the stock out, our water level goes down and to replenish the water we add back salt water.

When it comes to home aquarium, we have tons of tech machines or tools that are working in the aquarium such as the protein skimmer, rectors and refugium which help in keeping the water clean for a long time. Ultimately, we need to check the water parameters and the health status of our live stock to know if we require water change. So how we look at this is water evaporates and we add back the fresh water, salt was always there in the aquarium so salinity gets matched and for the trace elements we are dosing so this whole process is called water change.

Water change is not always deliberate sometime nature makes you do water change and you don’t even come to know about it that is the beauty of nature. So, ask yourself again have you ever done water change. When someone says that they have never done a water change that means they are living in a vacuum where there is no evaporation, and this will be an impossible condition for the marine life to survive or even for us as we are no different our body is also made of liquids.

It becomes very important for us to replenish all the trace elements in the right proportion in our aquarium for the marine life to thrive. Sometimes we do changes when we are cleaning our sand and if by any chance there is a excess dosing we have to take out the water and dilute the excess element. Also, the fish medicine that we use to treat our fish for that medic to come out of our system we do water changes as we cannot remove 100% of it by any other means.

So, sit back enjoy your tank and don’t worry about water changes if you deliberately don’t do it nature will make it happen on it own. If you do plan to do deliberate water change always remember to match PH, Salinity and temperature of your tank to the freshly prepared water.


Like always it's my day one in the hobby. Always been a hobbyist but never knew would dive so deep in the hobby. I too started with a freshwater aquarium. When I first started saltwater aquarium it just grew on me and I knew that had to do more in this hobby. I am a Post-Grad in Business Administration have worked with Coldstar Logistics, Amazon and Jindal's before jumping completely in the ocean. Other than aquarium hobby I have my interests in travel, digital games and consumer web technology.

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