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View Full Version : Too much calcium


christian1971
07-28-2011, 08:38 PM
I know its been said that hard water is ok. When I let me sponge filters dry out I noticed a lot of calcium dust that I was able to shake out. Is that amount all right? Wondering if that is what slowed down my cycling or even stopped it??
Sean Buehrle
07-28-2011, 09:04 PM
I know its been said that hard water is ok. When I let me sponge filters dry out I noticed a lot of calcium dust that I was able to shake out. Is that amount all right? Wondering if that is what slowed down my cycling or even stopped it??

It was probably biological organisms all dried up.


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