Oceanicsublimat
Aquarium Advice Freak
sorry for all the posts.. I post as I think of things..and one thing I haven't seen much about is water changes with a dsb.. I had the old crushed coral some years ago and I had a syphon that sucked and sifted the substrate..now how goes it in a dsb.. I have bought a couple of books..looks like I need to find better books.