11% 2x per week or 22% 1x per week
"Fish Heads" wrote in message
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Talking about water changes of course. Now that I've got my bio filter
built back up, I'm thinking about going to 11% changes twice per week. Is
that any better or worse than 22% once per week? I can actually see a few
advantages and disadvantages to both.
If you have the time, I'd change less water more often. More stable tank
chemistry that way.
Graham.
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