I'm about to start my first saltwater tank (i have done plenty of freshwater but i want to expand). It's a 30 gallon tank that would probably have 4-5 fish in it. I was planning on doing a cartridge filter and a protein skimmer. I heard since i'm not doing a sump, i should have more then one pumps. I'm looking at hydor pumps right now and i'm not sure if i need one or two and how many gph
do i need per pump. Would two 600 gph
pumps be too crazy?