About skimmers: y/n/maybe? FYI And they aren't your swimming pool skimmer...
A skimmer produces skimmate, a brownish watery to dark murky yuck that otherwise is dissolved in your water. It does this by frothing the water, and the more efficient skimmers churn the water into a foam that would stand like meringue in a cup. Do you want this stuff gone? Well, lps and soft coral will consume a bit of it. But unless you have a packed reef, their usage can't compete with a skimmer. And, catch-22,...