What are you adding to your tank?

[ScubaSteve]

I do almost strictly SPS and I add nothing other than kalkwasser. Water changes (IO Salt) and carbon dosing (VSV method) help keep parameters in check. When I started I used to dose everything but, unless I could automate the dosing (two-part dosers), it actually caused more fluctuations and hassle. And if I went away for the weekend? Everything would be out of wack. Ever since I simplified to kalkwasser and an ATO life has been great and my tank has taken off.