Yes, saliferts use a syringe for CA
test kits. I use and like salifert kits, I have used seachem in the past and would use them again if need be, the only two test kits that have gotten my "it'll be a cold day in hades before I use these again", are fastest and red sea. Aquarium Systems are the makers of fastest and IO, I sent them a sample of my IO and they replaced a bag for me and sent me a reference for CA
, and a free CA
kit. Niether were even close to accurate, and my salifert kits were right on the money.