Protein skimmer needed with tank?
I have been keeping a 40 breeder lately, and I really am interested into the salt water side of things. I am hoping to eventually do a reef tank down the road when I can get the money, but I need to understand a bit more. I understand the concept of a sump, but with a sump, I will install a protein skimmer on the sump itself? Is a refugium built into this system? What is the difference between a wet/dry system? Secondly, I have seen sumps where there is sand in one of the slots, is this required? Finally, do you guys recommend an acrylic or glass tank? Thank you.