Rocky background.

This guy have made a rocky 3D background from a foammattress. Great ide if it works in the long run. The whole background becomes a filter and also very cheap. After cutting it the way he wanted it he put tec7 on the surface. Mixed very fine sand and peat and throw it on.

http://www.ciklid.org/forum/attachment.php?attachmentid=27696&d=1292532592

Very impressive background and filter. I think the over-all impression would look better if he had smaller angular stone instead of the smooth river stone but, that's just me. It's sure to be a very nice looking tank when things begin to mature in.

Yes, I agree with you. I have never been a big fan of cobbles myself, but I´ve seen tanks were they do work beautifully.

Looks great. I have a couple of foam filter backgrounds that were store bought, but they don't look as nice as that one.