Supplements?

[Son Of Skyline]

Do any of you use supplements in addition to water changes?

Things like iodine, strontium, magnesium or whatever? Besides things like DT's and other coral "food".

I've been going along my merry way for the past year without any vitamin or supplement additions. Maybe just small water changes every month or so. My tank's doing good but not as good as I'd like. Little things bug me like a big lack of daytime polyp extension, and somewhat inconsistent growth rates.

Just trying to cover all bases. Thanks