http://forum.aqua-fish.net/ A forum devoted to aquarium fish, plants, techniques and fish keeping as a whole. en http://forum.aqua-fish.net/?topic=newbie-here-with-2-new-tanks-and-lots-of-questions-#1 We set up a 55gal. tank and a 20 gal. tank In December. Both are fresh water. In looking at all the avail. products I am getting a bit overwhelmed by all the different products and their claims to do Wonders for your tank. Recently I cam across EcoBio-Blocks For Aquarium Care And Pond Maintenance. Enjoy Clear Water and Healthy Ecosystems! at: http://www.onedersave.com/products.htm?gclid=CPKb1ovVvqYCFdLLKgodLAe4GA Have any of you tried these EcoBio blocks? If so - do they work anywhere close to how well they claim??? They are pretty expensive, so I don't want to throw my money away if they do not represent themselves accurately!!! Thanks so much for your time!!! GreenLisa1964 2011-01-17 http://forum.aqua-fish.net/?topic=newbie-here-with-2-new-tanks-and-lots-of-questions-#2 what is normally used to decorate the fish tank? cidlyana 2011-03-24