I have a used, three months old, ASM G2 skimmer for sale. Local pickup please, I am located near Dodger Stadium. This skimmer is rated for aquariums up to 200 gallons. I have modified the impeller with the mesh, but I do have a brand new unmodified impeller which I will also include. This protein skimmer works great with the mesh mod. The price is $195 firm. Thank you.