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Old 07-24-2009, 08:03 PM   #1 
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Join Date: Jul 2009
Location: Saint John, NB
Question Is it possible to cycle a 2.5 gallon tank?

I've read mixed reviews on this topic, and I'm just curious what everyone's opinion/experience is on the matter. I currently house my betta's in 2 2.5 gallon tanks, as this is all that space will allow me at the moment, and I wonder about cycling these tanks. Is it possible?

Should I maintain the uncycled tanks with full water changes every few weeks, or attempt to cycle these tanks with 25-50% water changes instead.

Is it possible to fishless cycle a tank of this size, if I were to house the current resident in a 1 gallon bowl (which i have on hand for salt baths and water changes) for the duration of the cycle?

Just looking for advice here, as I have never used a tank this size before.

Thank you :)
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Old 07-24-2009, 08:09 PM   #2 
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Join Date: May 2009
Location: West Texas
I have a 2.5 gallon tank, I didn't cycle it, since from what I've read and been told, tanks under 5 gallons don't really cycle. I have a Red Sea Nano Filter on my tank, so I just do 50% water changes weekly, but at the moment I am cleaning his tank 100% every 5-6 days since my betta had a strong case of fin rot.
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Old 07-25-2009, 08:53 PM   #3 
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Yeah, like Scienceluvr said. That amount of water just can't really stay stable enough to cycle completely from what I've heard, Things get out of balance very quickly. 100% every week should be good though.
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