What to feed the tank?

[Dash]

Recently some of my SPS are looking a bit pale. I’m thinking they are starving, as nitrates are undetectable. I have 16 fish but most of them are smallish. I do feed generously, including frozen daily but I guess it’s not enough. I started adding BRS Reef Chili (with skimmer turned off overnight) a few weeks ago and I think I see some improvement. Now I’m thinking of adding Oyster Feast to the mix. Any thoughts, experience with this?

Interesting that we noobies are told to get an over-sized skimmer, which I think is what I did (Vertex 180 for a 110gal). And now there’s a school of thought that you can over-skim? I do get a very dark evil-smelling skim-mate, so I don’t think I need to make an adjustment there? I also have a large ball of chaeto in the fuge that I’m trying to remember to harvest more often. (Anyone need some haha)