Would you consider this good to go?

[inaminute]

I used some blood from a finger prick that diabetics use it changed within seconds. This is SN + Blood test

I did use aquarium test but the strips are old so didn't register any change

 

[inaminute]

Nobody has an opinion on this?

 

[Praestat_Mori]

Afaik blood test says nothing about purity.
You need the aquarium test, and I'd say new test strips are better than very old ones bc the reagent chemicals on the strips may not work correct after a long time.

 

[mortuarymary]

Nobody has an opinion on this?

Ain't got a clue, sorry.