koi filter sand safe not safe?


RiaanP

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play sand is better than filter sand.
Filter sand tends to have sharper edges.
 

viper357

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If it's just Silica sand then it should be fine as it's inert, same as playsand just a larger particle size. Double check there is nothing added to it and that it is just pure silica sand, if it is then give it a good wash and you should be fine.
 
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I won't take a chance with it because i have sharks and wouldn't want it cutting them.
 

RiaanP

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yip, filter sand is a bit too rough for certain fish like sand sifting gobies and wrasses that sleep in the substrate.
 
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