 Re: Can i put a metal razor inside my tank to clean??
Yes, that is acceptable, but a razor blade or other metal type of scraper works the best for removing coralline off the glass. If you have an acrylic tank, don't use anything metal and stick to an acrylic glass cleaner pad or rubber scraper.
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Current Tanks: 220 Gal Reef, 10 Gal FW, 6 Gal FW
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