Mikeyp85 Posted August 12, 2014 Report Share Posted August 12, 2014 Is cork safe?? I got this mean looking tree stump made of soft cork material. Pretty dirty stuff. Boiled it. Scrubbed it. Plan on weighing it down and super gluing some moss to it. Anyone know if its safe? Quote Link to comment Share on other sites More sharing options...
Shaun Posted August 12, 2014 Report Share Posted August 12, 2014 Cork is inert but if it is not yet dry it may leech tannins. If it is indeed cork then you are going to have a whale of a time keeping it under water. Boil the crap out of it by tying stones to it this will kill any unwanted guests and also purge it from any sugars left that may form algal bloom and also will leech tannins if any. Louie 1 Quote Link to comment Share on other sites More sharing options...
Louie Posted August 14, 2014 Report Share Posted August 14, 2014 Having used and continue to use cork I agree about boiling it first just a fast boil will do it because to long and the cork can crack/break up and good luck keeping it down unless it is already water logged . I have some cork sheets which I had hope to use lol outside floating in some Rubbermaid stock tanks with fish for over 2 years . I also have some which sunk in 6 months time in tanks with java fern on them and works great . Quote Link to comment Share on other sites More sharing options...
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