Best/safest way to raise salinity?

[JC_UF_ITK]

I have a 29 gallon Biocube and my salinity is currently 1.022. What's the best/safest way to raise that to 1.025 or so? Thanks.

[barbra]

Do a couple of small water changes over the next couple of days with water that is a bit too salty until you get it up to about 1.024 to 1.025 for most things. Corals don't like to go too high especially, so I wouldn't exceed 1.025.

[lark]

You could add more salt, or mix up a batch of higher salinity water and do a water change with it slowly to bring up salinity.

Or you could wait for some evaporation and then top off with salt water.

[Tremolo]

I would top off with saltwater. that way your not adding much at a time. depending on how low you salinity is it could take a while but it is best not rushed.

[Gooli]

to be on the safe side, i would do it slow...as you do weekly water changes...do them with 1.026 water...within a few weeks the salinity would rise gradually...

dont rush it...1.022 is not gonna kill anything.

[cardiffgiant]

What ever you do, I would NOT add salt directly to the tank. The end result will be more difficult to calculate and correct (if too much is added), and the unmixed salt can irritate fish and corals as it dissolves.

One time I raised mine slightly by mixing a small amount with fresh water in my auto top off. I was trying to raise mine from 1.024 to 1.025 and did so over the course of 2 weeks.

[Jocephus]

Originally posted by cardiffgiant
What ever you do, I would NOT add salt directly to the tank. The end result will be more difficult to calculate and correct (if too much is added), and the unmixed salt can irritate fish and corals as it dissolves.

Good advice there. Instead of freshwater for evaporation topoffs, use saltwater. Not excessively salty water, mind you, saltwater with the salinity you are looking for. Eventually the level will correct itself, then go back to freshwater topoffs.

Good luck,

Joe

[JC_UF_ITK]

Thanks for the advice. I just added a gallon of 1.025 saltwater.

[leoslizards]

Thanks for the info.
My SG is currently at 1.018 and I want to get it to 1.024 so I'll just topoff with sw at 1.024 until it eventually reaches the desired sg right?

[Jocephus]

Exactly, keep a close eye on it though. Once you hit the desired salinity, make sure you go back to topoff with freshwater.