Best Phosphate & Nitrate test kits?

[MartyF]

I have been using Salifert for both and always get readings of 0 for both, water always stays clear after adding reagent. I don't have any macro or nuisance algae so I know they aren't absorbing before it can be tested. My test kits are 14 months old but I can't find an expiration date

 

[morpheas]

For me personally (since I have a little problem distinguishing colors) I find that the red Sea nitrate pro is the best for nitrate and a hanna your phosphorus for my phosphates. This works best for me.

 

[MartyF]

For me personally (since I have a little problem distinguishing colors) I find that the red Sea nitrate pro is the best for nitrate and a hanna your phosphorus for my phosphates. This works best for me.

Thanks