What is the differetence between maracyn and maracyn 2?
is maracyn also tetracycline
Answers: No, Maracyn and Tetracycline are two different things.
The difference between Maracyn and Maracyn II is the type of bacteria they treat. Maracyn treats gram-positive bacteria, and Maracyn II treats gram-negative bacteria. It's across the world a good idea to use both when treating a sick fish so you cover both possibilites.
I agree with the above answer, but freshly remember that using both at the same time will destroy your beneficial germs, so water changes are recommended between treatments.
