Raise salinity

[Reeferbadness]

Currently I'm using a Red Sea Seawater Refractometer. I plan to get a Milwaukee electronic Refractometer soon.

I'd advise getting the Hanna Salinity Checker - it's a lot easier to use than the Milwaukee and just as accurate if calibrated correctly

 

[KStatefan]

Hi,
We have low salinity (1.021/2). 42g display//52g total. Red Sea G200.

Being new, we added a Midas Blenny and he didn't make it. LFS said our low salinity was the cause. So we are adding salt water. We have added 5g over 11 days based on topping off our sump. (We put a tape line on outside to add just what evaporated.)
We are barely at 1.22/3. We use a refractometer (manual).
ATO is off.
I think I just read in this thread to put ATO in the Salt water and let it top off accordingly.

42g display//52g total.

Point is, we are really wanting to add a few fish and are scared that the low salinity will kill the new guys.

1. Will lower (1.021/2) salinity kill fish that have been in higher (1.024/5) salinity?
2. Does our rate of increase seem slow? We used 5g salt from our LFS and assumed it was at 1.024. Didn't test, will do that today for just in case.

Do you have any livestock in the tank? If not raise it as fast as you want.

Use this calculator
https://www.hamzasreef.com/Contents/Calculators/ResultingSalinity.php

 

[nostalgiaforinfinity]

We do have livestock:
2 Cardinal Pajama
1 Xmas Wrasse
2 Conch
1 Emerald Crab