The Puffer Forum

Posted: **Fri Oct 20, 2006 6:53 pm**

hi all,
I am setting a tank up and planning to put 1 f8 in it. Is coral gravel (medium size) OK to be used as substrate?
thanks

Posted: **Fri Oct 20, 2006 7:26 pm**

Yep. You can use whatever you like. Crushed coral will buffer the pH nicely though.

Posted: **Sat Oct 21, 2006 6:49 pm**

I had a problem with ph so I got 1/2 crushed coral, 1/2 sand. It did the job for me.

Is coral gravel ok substrate for f8 tank?