zeolite directly in tank?

ff1378

AC Members
Nov 26, 2006
9
0
0
Hi everyone
I've read about the advantages of zeolite in setting up bacteria colonies in filters and reducing ammonia and nitrites in the tank. Is it possible to use zeolite small rocks directly and mix them with gravels in tank?

regards
 
they won't be nearly as effective as when used in the filter where oxygenated, flowing water will run over them.
 
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