Looking for suggestions on a new skimmer. Tank is a 42 gallon with a 10 gallon-ish sump, probably in the neighborhood of 35 actual gallons of water. It's a mixed reef with moderate loading. I'm on a budget, but am willing to pay a little more for a better quality product. Any suggestions? After doing a fair amount of research, it looks like my tank is a little on the large side for most of the nano skimmers, but small enough that I've got concerns about producing enough waste to make the next size up work well. I'm also willing to buy used if anyone has a skimmer they're parting with.