Hiya
Once you get an idea of your tanks draw on the supplements the testing only has to be once every 14 days really, wher as a calcium reactor and I say this with experience with various ones is a constant co2 battle.
In regards to the salts and how long they will last, this is the most popular and natural question to ask, and I wish there was a fixed answer, but sadly there is not, as I said on RC last night to this, Corals are living things, and just like anything living they all have their own nutritional requirements, there is just no way of even giving a ball park figure, I really wish i could but with tanks, everyones inhabitants are different and the corals will decide for themselves how greedy they wish to be.
Having said that after two to three months you will get a fair understanding of how your corals react and what demand they are asking of you.
Just back from pre natal so going offline now will catch up with any updates in the morning
Cheers guys
