I just went to use to check the Alk/Cal/Mag on my tank and while testing i realized the marks on one of my 1 ml syringe has wore off. I then noticed that they say for single us on the syringe. I assume they are marked for single use for anyone using the syringe for medical purposes not testing water in an aquarium.
Does everyone actually only use the small syringes once and then throw them away?
Also, for replacement syringes is there any reason not to buy one of the cheap 100 pack of them that I see on amazon?
Does everyone actually only use the small syringes once and then throw them away?
Also, for replacement syringes is there any reason not to buy one of the cheap 100 pack of them that I see on amazon?

