Subj : ping?
To : Marty Blankenship
From : mark lewis
Date : Mon Apr 28 2008 07:10 pm
ML> back to the substrate/gravel... you should have at least 2 to 2.5
ML> inches of substrate... that's about 10 pounds for each 150 square
ML> inches of tank surface...
MB> Whats substrate?
that stuff you put on the bottom of the tank ;)
MB> I usually use just gravel, or is substrate for salt water setups?
