5 months into this amazing hobby!

[Jakegr]

API is OK for calcium. I always got reasonable values using it. My main issue was losing count of the drops! I wouldn't recommend the Seachem calcium test as the color change is hard to see (although I like that it uses a syringe for the titration so that you do not have to count the drops).

John Coppolino, a well known hobbyist in the US, only tests alkalinity in his amazing SPS tanks.
http://www.3reef.com/forums/sps-cora...l#.UktN7L9TvFI

IMO for reef tanks that consume substantial amounts of calcium, testing for alkalinity and calcium is very important.

[jason604]

Originally Posted by Jakegr

API is OK for calcium. I always got reasonable values using it. My main issue was losing count of the drops! I wouldn't recommend the Seachem calcium test as the color change is hard to see (although I like that it uses a syringe for the titration so that you do not have to count the drops).

John Coppolino, a well known hobbyist in the US, only tests alkalinity in his amazing SPS tanks.
http://www.3reef.com/forums/sps-cora...l#.UktN7L9TvFI

IMO for reef tanks that consume substantial amounts of calcium, testing for alkalinity and calcium is very important.

holy... thats got to be the nicest tank i ever seen... cant imagine how much something like that would cost... brand new BMW? lol