What are the benefits of extra water change?

  • We are currently upgrading MFK. thanks! -neo
I have noticed that my fish are much more happier and more active with more water changes.

I do 100% at least once a week but if I have the time or bored I do 2-3x 100% a week. Not sure if it would be considered "sensitive" but I think they are not your ordinary mickey mouse fish and more susceptible to problems or sensitive when compared to the problems online.

My fish love it and I love how they are, but different strokes for different folks.
 
other then growth and hormones... manual removal of waste to help my biological system working only as hard as it has to is incentive for me. doing large water changes doesnt phase any of my fish.. from my gar, spiney eels, to our rays.. the key is being consistant... doing an 80% water change after only topping off a tank for monthes will likely kill off a majority of your fish... doing 80% daily on discus/rays/ insertbsensitive species daily is fine... if they are use to this.. if not work up to large water changes over weeks or monthes.
 
Right now I'm only doing 2 15% changes a week on my 125. Then again, I only have 4 very small fish in there and I vacuum daily or more. As long as your nitrates are low, the fish are happy, and you're changing the water consistently, you'll be fine.

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seedubs1 said:
There's other hormones, etc... that fish are releasing into the water that we don't test for.

Because of that, more clean water will result in higher growth rates as well as better health.
Click to expand...

I am wodering if there is any actual scientific evidence on this....

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There are many things filters don't remove. Unless you use fractionation, or do water changes, many invisible contaminants remain.
Dissolved organic compounds which include uric and other acids, hormones, and phenols, to name just a few remain after mechanical filtration, just because water is clear doesn't mean it's really clean.
Many micro organisms are also removed, and kept under infective levels with water changes, especially if the substrate is vacuumed.
If your fish come from rivers, they are in a constant state of water change, and if you compare most tank stocking levels, to gallons per fish in nature, the more water changes, the better.
076-1.jpg

The above is dissolved organic carbon removed from my 1500 gal freshwater pond by fractionation, after mechanical, and bio filtration. And the pond is clear, and understocked.
 
duanes said:
There are many things filters don't remove. Unless you use fractionation, or do water changes, many invisible contaminants remain.
Dissolved organic compounds which include uric and other acids, hormones, and phenols, to name just a few remain after mechanical filtration, just because water is clear doesn't mean it's really clean.
Many micro organisms are also removed, and kept under infective levels with water changes, especially if the substrate is vacuumed.
If your fish come from rivers, they are in a constant state of water change, and if you compare most tank stocking levels, to gallons per fish in nature, the more water changes, the better.
076-1.jpg

The above is dissolved organic carbon removed from my 1500 gal freshwater pond by fractionation, after mechanical, and bio filtration. And the pond is clear, and understocked.
Click to expand...


Do you have a thread with how you built your fratctioner? Or perhaps a vid/pic of the whole contraption
 
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