When to change water after adding fish - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 4 Old 02-07-2011, 02:14 PM Thread Starter
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When to change water after adding fish

Up until now Ive never added more than 3 fish at a time and never had any problems. Just now I added 6 new fish to my planted 75, how long should I wait to do a water change? or should I just test every night to see if anything raises?
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post #2 of 4 Old 02-07-2011, 02:17 PM
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I would say do 20% daily for about a week
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post #3 of 4 Old 02-07-2011, 03:24 PM
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I disagree on the daily water changes--unless there is a problem. But in a "planted" 75g tank with only 6 fish being added, nothing should occur. Assuming they are not enormous fish, and "planted" means quite a few plants.

Weekly water changes should be basic. The volume depends upon the fish load, but it can vary from 25% to 60% every week. I do 50% weekly, but I have a lot of fish in my tanks, notwithstanding they are well planted.

Byron.

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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post #4 of 4 Old 02-07-2011, 03:33 PM Thread Starter
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Oh no, nothing big just emperor tetras. Theres only 12 fish in there so its not heavily stocked by any means.
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