Why did it drop are you putting too much top off water in?? Depends on how much it dropped if you should be worried and what you are keeping in the tank also depends on if you should be worried???need more info to help :joy:
ive been doing it via Instant Ocean hydrometer and its dropped 0.002-0.003, its been goin bout 5 days, an its a 70gal*pant*pant* oh and i have changed nothing
Hydrometers are junk! Get yourself a refractometer and see what your salinity is at.
When I got my refractometer I found my salinity was way off.
IMO...One of the best purchases I ever made for my tank was a refractometer.
Originally Posted by Sharkboy13
question is how much is a..a..refractometer? from what ive heard theyre like $90
They're on sale here (Saltwaterfish.com) for only $50 ---> Refractometer