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Aquarium Rocks - Is this old live rock?


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On 10/15/2021 at 12:56 PM, CanadianFishDad said:

So I just moved to my new house and the previous home owners had left this laying on the basement floor. 

To me it looks like old live rock from a saltwater tank? If I clean these can I use them in my planted tank? 




Yes, and yes.

Note that dry rock (formerly live coral that is now dead) will act like crushed coral. Depending on your tap water, you may or may not want it in your planted tank. If your water is soft to moderately soft, it can help (for some fish). If you have hard water already, you may not want it. 

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