additives to buy?

[viperfish]

I wonder what those "Zeo" folks would say about that? It's refreshing to have a credible source reinforce the fact that a small fortune doesn't HAVE to be spent to have a reef tank. There is such a huge turnover of people in this hobby and I'm sure the expense is one of the highest contributing factors. It costs enough to sustain a reef without having to buy into all the Snake Oil that is out there.