Best tester for Phosphate


New member
Planning to add SPS to my tank in the future so I'm looking to make sure my Phosphates and Nitrates and as low as possible and I need a better way of testing Phosphates then the std API kit.

My LFS recommended the Hanna checker but I'm not sure which model. It looks like it'd be the 713 but I've heard of others using the 736. Hanna says that's a Phosphorus checker. Is that the same think as Phosphates?