stankyd July 26, 2012 Share July 26, 2012 Hi, I am considering purchasing a sump made of high density polyethylene. Does anyone know if this is safe or toxic to salt water fish/crabs etc.. Dave Link to comment Share on other sites More sharing options...
Coral Hind July 26, 2012 Share July 26, 2012 HDPE is totally safe. It is used in a lot of food packaging like milk jugs, butter tubs, and water jugs. Moving topic to the general discussion area where there is more traffic. Link to comment Share on other sites More sharing options...
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