monsterfishkeepers.com discussions on north fin "ethoxyquin free" claims.Provided 2 Lab. tests. It has been a hot topic. I thought it's rather interesting to share on this forum as well.
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bluering
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This is what Northfin claims on their website: "NorthFin Premium Fish Foods does not use any preservatives or harmful chemicals to preserve its product line.”
below is their website: