Mr.catfish Posted March 11 Share Posted March 11 I wan to use Co2 in my aquarium but Co2 reduses calcium, can i use egg shels to add calcium in my aquarium? Link to comment Share on other sites More sharing options...
JosiahBass Posted March 12 Share Posted March 12 You can, but it might not be enough. Link to comment Share on other sites More sharing options...
Tony s Posted March 13 Share Posted March 13 (edited) you can use egg shell, oyster shell, wonder shell, all the shells. you can also use crushed coral, cuttle bone, aragonite in the substrate, and even chicken grit. all a matter of what you find easy to use. cause once you start, you need to be consistent with it. The egg shell thing has me a bit concerned. have not yet heard a process for processing it. leaving the membrane in and egg white remnants. seems to be a bad plan. unless you can get it from a commercial source Edited March 13 by Tony s Link to comment Share on other sites More sharing options...
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