I'm in the process of setting up two saltwater tanks, one 35 galloons, one 55 gallons. This is my first time assembling fish tanks with skimmers included, and I'm having trouble deciding what brand of skimmer to use, since most are made for heavy duty 75+ gallon tanks. I'm on a bit of a budget but i don't want to skimp on the skimmer. Any suggestions for a brand of skimmer to use for a 55 gallon and a 35 gallon tank? Thanks.