01-29-2009, 08:26 AM
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Not all filter floss is safe for fish.
Recently on another forum , I followed a discussion among some breeders of expensive fish and there were some reports of sudden die offs of some of their stock. All the usual questions followed and were sumarily eliminated. Then , the question of what type of filter media if any was being used and a possible problem surfaced. It seems that some floss such as that found in craft or hobby stores could be treated with flame retardents and that these retardents could possibly be harmful if used in the aquarium. Always wise to examine closely any such materials before using them in your aquarium. Just a heads up if you will.