So I did a water change today and I matched the salinity to 1.008 in the bucket however each time I added the 6us gal bucket to the 79gal aquarium the salinity of the entire aquarium went up by 0.001 so I stopped filling the tank and now the fish won’t eat, what have I done wrong that the newly treated water at the same salinity increased the entire aquariums salinity? Also the fish aren’t eating and acting a bit lethargic now.