My skimmer is exactly like the one below. It has two pumps in great working condition. This skimmer can handle up to 200g. Looking for a skimmer good for 50g. Cone skimmer, Vextex skimmer, etc. Let me know what you have.
http://www.monstermarketplace.com/aquarium-supplies-and-equipment/aquaeurousa-protein-skimmer-eps250
http://www.monstermarketplace.com/aquarium-supplies-and-equipment/aquaeurousa-protein-skimmer-eps250