I agree with Ziad, the AquaC Remora is a great skimmer. The Prizm is a good one too. Have you tried giving it a good cleaning and soaking it in Vinegar & water for a couple of hours? That can rejuvinate a skimmers ability!
Ditto AquaC Remora is a great HOB skimmer. I had the Remora Pro on a 75 gallon and it worked significantly better than all the other ones I tried. I might have got more skimmate outta that sucker than the skimmer i have now thats rated for 225.