The rocks are called Calcite. one of my favorite stones to go hunting for, but never thought they would look good in a scape. your tank has proven me wrong
Thanks for the info! Now at least I know somethings about what I'm using. Doing some research for the rocks too.
I've been using the rocks more than a year in my 10 gal RCS tank with no problem...and this tank for more than 3 months - no dead issues...
He's a driftwood hunter...always come to our local lakes to collect driftwoods. He brought a lot of pieces to my house to traded for plants and shrimps. I had to cut some long pieces to fit this tank though.