Generaly you get what you pay for in this hobby some people like 1 skimmer and the next person does not. so do alot of resurch and get the best you can aford to. surch on as many forums as you can and check out testimonials also as that will give you a general idear. I would stick with the big guys, there is a canadian skimmer that I have seen and it looks well made read some testamonials on one forum and they realy like the construction of it and said it skimmed realy well. anyways do alot of resurch and ask what others think about the skimmers you have narrowed it down to I would say no more than 4 different skimmers. I would also get one that is rated for a larger tank than you havesome thing like 2 times the size. I don't think it hurts much to go a bit big.

Bill