I'm thinking about getting a skimmer , it's a knock off, but looks promising, it's a newer design cone skimmer. I figure with the design worse case scenario is I have to get a better pump down the road. Or I may get I higher end, but used down draft skimmer. The down drafts seem better made and are rated for big tanks, but will require a large powerful pump that I will have to buy and plumb and operate 24/7. I don't know.
Here's the cone skimmer:
Here's an example of the downdraft skimmer, there's a few I'm looking at but they are similar to this.
So here's my pros and cons for each
Unknown company, pump quality ect
Maybe a little small for my setup (rated 180g)
New more efficient design
Requires additional expensive pump
Older design, less effecient
Larger, will require more intricate plumbing
Buying this used so, could be unknown issues ( could be buying someone else's problem)
Tried and true design and companies
Generally rated much higher than my tank size(200-300g)
Appears sturdy/high quality parts