Is clay aquarium-safe?

[Fish_Mike]

Hey thanks, if the sand really helps the clay from coulding the water, i'll use it!

 

[Dubby]

Hey thanks, if the sand really helps the clay from coulding the water, i'll use it!

[snapback]894650[/snapback]​

You'll need about 1.5-2inches of sand on the top. So about 1inch clay and 2inches sand.