Test strips for SN

[katy]

Does anyone know where to buy test strips for SN? I thought they were freely available on Amazon but I can't seem to find any. I've tried placing a couple of orders with suppliers online but it seems they are a restricted purchase. Wasn't expecting this hiccup.

 

[Lydia12]

aquarium reactive test strips I heared but no idea which color

 

[katy]

I can find lots of aquarium test strips which test for nitrite. I'm sorry, I'm not a chemist but I'm trying to do my research. Is it sufficient to test SN just for its nitrite content?