As the title says I got a medium sized 1 but its too big for my tank so trade with someone who has a smaller size and is looking for a bigger size (doesn't have to be mag brand)... link to mine
http://www.amazon.com/gp/product/B0002568ZO/ref=oh_o06_s00_i00_details
http://www.amazon.com/gp/product/B0002568ZO/ref=oh_o06_s00_i00_details