Can someone describe for me the purpose of a protein skimmer?
I am new to saltwater (several years with freshwater). I have a 75 gallon tank, 2 Ehiem canister filters, a power head for circulation, and my lighting consist of 4 VHO
(2 white, 2 blue). I currently have about 40 lbs of live rock, 2 damsels, 2 clowns, 1 blue tang, 1 engineer goby, and a small assortment of snails, and crabs. The tank has been cycled for about 6 months now, and everything seems to be doing fine. I am fighting an on and off battle with brown algea.
I am interested in adding some soft corals at some point, and just wanted to know what a protein skimmer does, how do you know if you need one, and approximate cost for one in a 75 gallon tank.