Hi all
This may sound very stupid... but this is a first for me.
As per instruction from the pet shop, I need to test my Mg in my tank as I've tested everything except magnesium. He sold me SERA Mg 3 x Reagenz
But I don't have an idea how this tester with the 3 x Mg 15ml bottles work!!!!
Can you please assist????
This may sound very stupid... but this is a first for me.
As per instruction from the pet shop, I need to test my Mg in my tank as I've tested everything except magnesium. He sold me SERA Mg 3 x Reagenz
But I don't have an idea how this tester with the 3 x Mg 15ml bottles work!!!!

Can you please assist????
