12-20-2007, 02:43 PM
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I'm not sure what Oxyclean contains, but I wouldn't use any chemical cleaners. Bleach can be used so long as what ever was cleaned with it is allowed to dry completely. Bleach leaves no trace once it's evaporated completely. Vinegar will loosen up most gunk, I use it to clean the coraline from my power heads, and have even used it to loosen stubborn urine stains in toilets.
Basically, in my tanks, If it cant be cleaned with water, bleach, vinegar, or scraed with a razor blade, it ain't worth cleaning.