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Daniel@R2R

Living the Reef Life
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Noticed a bunch of sand like grains in the tank I cleaned out yesterday and thought it was from where I transferred them from the main tank. But today there are a bunch more in the new TTM tank. What might they be? They are like sand grains except larger.
Could it be precipitation of calcium?
 

Brew12

Electrical Gru
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Tangs (and other fish) eat sand to help digest their food. Like birds eat grit. The sand is eventually pooped out.
Well that is a boring answer. Too bad it's probably correct. :confused::D
 

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