Paul70
Fish Fanatic
Has anyone else noticed that their api test tubes as supplied in the master test kit may not be an accurate 5ml?
I have started using a medical syring to draw up tank water and when I draw up 5ml tank water and put it in the test tube it goes above the marked 5ml line. when I add water up to the marked line it is only something like 4.5ml.
Should I continue to fill to the marked line or use the 5ml as measured in my syringe? I have not made a mistake with drawing the water as I am experienced with these syringes being a registered nurse.
I have emailed API for advice also and will let you know what they say but for the meantime I am unsure about the accuracy of my water results now.
I have started using a medical syring to draw up tank water and when I draw up 5ml tank water and put it in the test tube it goes above the marked 5ml line. when I add water up to the marked line it is only something like 4.5ml.
Should I continue to fill to the marked line or use the 5ml as measured in my syringe? I have not made a mistake with drawing the water as I am experienced with these syringes being a registered nurse.
I have emailed API for advice also and will let you know what they say but for the meantime I am unsure about the accuracy of my water results now.