How can I safely raise salinity in my tank quickly?

[RussC]

I created a monster. Refractometer calibration was off, did water change, salinity was wrong. Found out my apex salinity probe was also off. So now I have a tank with what looks to be a salinity around 32-33. Been about 48 hours.What can you recommend?

My first thought is to mix up a new batch of 36ppt water. I've got things calibrated now so I believe that should be the easy part. This slowly remove some from sump and replace with 36ppt.

I have a 112 gallon system. My sump is just about 20 gallons. I do a 20 gallon change every two weeks. I was thinking I'd try a 10 gallon mix of 36 ppt.

Here's a question...should I mix up a 37ppt mix to increase a low tank salinity? Or is that too drastic even if I add slowly? I'm just spitballing ideas here. Thoughts?

 

[skiergd011013]

Thats really not too low. I wouldnt worry much, and would just top off with S.W in your sump a few days until its back to normal.

 

[Swoody]

I say bring it up 1 point a day...any more than that and things are gonna stress even more. What is in your tank?

 

[RussC]

Variety of critters and corals. Sps to clams. Fish to inverts.

 

[RussC]

Variety of critters. Sps to clams. Fish to inverts. No obvious signs of stress except my Kenya.

 

[PatW]

I would just use saltwater as your top off until it reaches the level you want. I would not try to increase fast unless it was critically low and it isn’t.

 

[Randy Holmes-Farley Verified Community Expert]

Same. Top off for evaporation with saltwater is nearly always the easiest and best way to raise salinity.

 

[RussC]

Thanks guys. That's an easy way to get it done.