I have a ASM G1 or G1x skimmer for sale. Not sure how you tell the difference. Works great, just upgraded to a G3. Has not been modified in any way but I do have the stuff to do an impeller mod if you want it. Looking for $150 OBO. Not necessarily looking for trades as I am trying to get some cash to buy a coral I want but if you have something let me know. No equipment trades. It would be coral only or cash. Pump is obviously included.