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tetratec ex1200

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  1. yasinullah

    White Growth/mould Growing Inside External Filter Hose (ex1200)

    Hi all, Wondering if anyone might know how to stop this white growth that is appearing inside my filter hoses. I set up my new tetratec EX1200 filter 3 weeks ago and have had this problem twice now, first time round I came home to find soft white flakes had been sprayed all around my tank...