I have an Aquarium Life Support
trickle filter p-1000 with a 22v
protein skimmer for sale that I purchased last august. It worked great on my 55 gallon tank but I have upgraded to a 150 gallon and do not need it anymore. It includes the bioballs but the rio pump that came with the skimmer is broken. I believe they are around $15. The return pump that I was running is a mag 7 but it I think it is rated for a mag 5. I paid $389 for it and will sell it for $200. I believe it is rated for a 100 gallon set-up at 500-800 gph flow. This does not include the return pump but does include the overflow box. I think a mag 5 is about $60-$70 and the mag 7 is about $10 more.
I also have a Coralife 48 " Lunar Aqualight compact flourescent fixture for sale that was purchased in June. It has 2x65 watt actinics and 2x65 watt 10,000k daylight bulbs,and 4 3/4 watt lunar lights. It was used for 6 months so the bulbs are on the verge of needing replacement. I think they are about $20 a bulb, but I am not sure. I paid $280 and will take $150. Just send me a message.