chuckfullservice Posted May 18, 2009 Share Posted May 18, 2009 Well I always thought more was better . The more sand you have the greater the area for beneficial bacteria to live in . Thus equalling a great bio filter . Of course this is purely speculation. I have 29 gal with a 4" sand bed maybe even 4.5" and everything has been going great now for nearly 3 years sooo... Link to comment
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