Thank you for the reply ......the salinity is fine its reading 1.024 - 25, I am using the API 5 in 1 test kit which i recently bought from the Aquatic center, expirey date is 2014! I have a damsel and humbug fish, 2 hermits, 2 turbos, at least 3 bristle worms, a brittle star some mushrooms which...