@McPikie had you used a Triton ICP-OES test you wouldnt have to ask @Randy Holmes-Farley for dosing advice
Completely appreciate that. I didn't realise which section this was in as I had just searched for threads on Cobalt issues. I'd been given the Marinlab ICP test by a friend of mine so couldn't really turn it down.
At the moment, I am balling light by the Fauna Marin suggestions, to keep Kh in check mainly, as I still do weekly water changes. Does Triton advocate never doing water changes?