Did any one used one of these? Is it going to work with MJs. I am trying to use it on my 20g nano.
http://www.drsfostersmith.com/Product/Prod_Display.cfm?pcatid=11363&N=2004+113782
http://www.drsfostersmith.com/Product/Prod_Display.cfm?pcatid=11363&N=2004+113782