I can help you with the stones when you'r in Holland..Love your tank Vaney, I have family in Almera you fancy making some caves and billing me for your efforts. I am planning to build a Xingu biotope during 2012.
I notice you have very deep sand, do get gas build in the sand? I was considering (only considering at this stage) using granit slabs cut to size for the bottom of the tank then sealed around the edges.
Looking for inspiration around the web and seeing your set has inspired me. Thanks.
Don't know exactly.Very geniuos! Compliment!ho many catfish you have?