B

[Haim]

Is it healthy for a reef aquarium to use calcium carbonate for water shading purposes?

 

[Garf]

Is it healthy for a reef aquarium to use calcium carbonate for water shading purposes?

"Shading"?

 

[Randy Holmes-Farley Verified Community Expert]

I also do not understand the question, and do not know what to change the title to so that it is helpful.

 

[Dan_P]

I also do not understand the question, and do not know what to change the title to so that it is helpful.

Did a little sleuthing. This could be an incorrect translation of Hebrew. We are being asked about buffering or clarifying water with CaCO3, maybe.

 

[Randy Holmes-Farley Verified Community Expert]

Ok, many people clarify water with calcium carbonate powder. It works, but I am concerned about clogging the fine pores of filter feeder such as sponges and I do not do it myself.

As to buffering, it’s not effective unless the pH is well down in the 7’s since the particles will not dissolve.

 

[Haim]

Ok, many people clarify water with calcium carbonate powder. It works, but I am concerned about clogging the fine pores of filter feeder such as sponges and I do not do it myself.

As to buffering, it’s not effective unless the pH is well down in the 7’s since the particles will not dissolve.

Thanks,