Aqua junky Posted December 18, 2020 Share Posted December 18, 2020 Has anyone used this API marine Calcium for adding calcium to your planted aquarium Link to comment Share on other sites More sharing options...
gulf coast guppies Posted December 19, 2020 Share Posted December 19, 2020 I have never. I use crushed coral or wonder shell they work great for adding calcium in freshwater tanks. Link to comment Share on other sites More sharing options...
Daniel Posted December 19, 2020 Share Posted December 19, 2020 I agree with @gulf coast guppies above that either Wonder-Shell or crushed coral would be a good choice as both will dissolve as needed and are therefore a more gentle way to adjust calcium levels. Link to comment Share on other sites More sharing options...
Aqua junky Posted December 19, 2020 Author Share Posted December 19, 2020 I returned the API Calcium and bought a couple wondershells. Thanks everyone! Link to comment Share on other sites More sharing options...
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