if its slimy its cyano, if you can flake it off with your fingernail its likely coraline
if you follow the directions you should have no probs with chemiclean, i have used it a few times with no ill effects
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if its slimy its cyano, if you can flake it off with your fingernail its likely coraline
if you follow the directions you should have no probs with chemiclean, i have used it a few times with no ill effects
Last edited by tony; Sun, 6th Jan 2008 at 11:34 AM.
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