03-03-2007, 10:57 AM
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very easy question to answer
Never do a scrubbing change (unless you have a serious problem of cleaning detergent on your gravel or something)
Do at minumum 25% water changes weekly, you can do 15% water changes twice weekly for better results but that might take up more of your time
Changing the water wont kill the bacteria since they arent free swimming bacteria and no matter how much water you change, the fish will still poop and feed the bacteria.
Whoever does that 3/4 water change with gravel and ornament scrubbing doesnt seem to know what he is doing, bring him to this forum and let us knock some sense into him :)
When doing water changes vaccum the gravel weekly, if you do the 15% twice weekly then only vaccum on one of those days. Dont scrub any ornaments unless there is unwanted algae, top of with RO/DI water or distilled, lightly scrub tank walls and ornaments if you have an algae problem. Make sure you only lightly scrub to reduce the damage to the bacteria. Never rinse underneath tap water as the chlorine will kill all the bacteria.