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Old 08-22-2012, 01:20 AM   #1 
britishbetta
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Question How often should I change 3 gal tank?

This is a general practice survey question to you all. :) I've heard people recommend 2-3 50% changes + 1 100% change per week for a 2.5 gallon tank.

A 3 gallon tank isn't so much bigger than a 2.5 gallon. How often do you feel I should be changing my fish's water. I've been doing one 50% + one 100% per week; is that enough? too little?

What are your thoughts?
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Old 08-22-2012, 01:21 AM   #2 
LebronTheBetta
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If it's not filtered, 1 50% and 1 100% is ideal. :)
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Old 08-22-2012, 04:10 AM   #3 
Hallyx
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That's about right. But, for ultimate peace-of-mind, get yourself a liquid teat kit and check your water a few times per week.
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Old 08-22-2012, 04:36 AM   #4 
Aus
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Before my 3.5 (it's actually a tad less) cycled and had bulk plants, I changed 50% every 3 days, religiously. 4 days is about how long it took to show ammonia on the liquid test kit (Cleo was smaller back then, too!), so I took it back a day to keep it cleaner.

Once a week, usually, I'd do 100% - but once it was full of plants and cycled I've had no ammonia show for a week at a time (testing it every day! still, I didn't like doing this..). I now change the water 25-30% twice a week and get 0 ammonia every test.

I guess it depends on the tank. For unfiltered, no plants, I'd probably stick to "change it the day before it's due to read ammonia" and test frequently anyway.
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Old 08-22-2012, 08:51 PM   #5 
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Thanks everyone! I'll be sure to keep testing kits in mind. :>
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