Why Water Changes?: The Long Answer - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 13 Old 03-06-2010, 12:27 PM
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a wise fish keeper once told me that its the quality of the equipment (filter, heater, air pum)....not just the size and the cleaning methods :):):)

190L Tropical Aquarium

a wise fish keeper said to me "your not a fish keeper , your a water keeper the fish just live in it"
5 Pristella Tetra
2 Bristlenose Plecs
5 Angels
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post #12 of 13 Old 03-06-2010, 02:09 PM Thread Starter
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Those things are important too, but they don't mean much if you never clean the tank :)

So, what did you think of the article?

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post #13 of 13 Old 03-07-2010, 11:14 AM
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Originally Posted by MOA View Post

I build stocking spreadsheets in my spare time and one accusation I often hear from the people who use my spreadsheets is that it is unfair to base how many fish a person can keep based on their cleaning frequency and the amount removed. I have heard this argument for many years and finally decided to answer it in some detail:


The above link essentially states that 1) not all waste products can be handled by live plants or filters, and 2) that partial water changes do definitely limit the amount of waste that can be in a given aquarium. Hopefully this post will help answer any questions that new aquarists might have about water changes in general.

This is very good. I have often written much the same on this forum only without the technical data, some accept it, some don't. We soldier on. There was a good two-part series of articles along the very same lines in the November and December 2009 issues of TFH that you may or may not have seen. The author had a lot of statistical data supporting the volume and frequency of water changes to maintain lower levels of pollution in an aquarium. Plants were not included in that scenario, and they do as you've noted make a difference.


Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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