raising salinity

[stoneroller]

I'd like to raise my salinity up a few points, from 1.022 to 1.025, about 100 gallon system capacity including sump and fuge. What's the safest way to do this?

[erikharrison]

slowly with a dripper bucket!

[don-n-sa]

Do a water change...around 5-10 gallons. When you add the new saltwater, make it a higher salinity, like around 1.030.

[stoneroller]

The water change would make for a rapid rise. Is that ok?

If I were to slowly drip, how much time should I take. Hours, days?

[don-n-sa]

Changing 5g of water in a 100g system would not be a rapid change IMO, remember you would be removing 5% of your saltwater that is 1.022 and then adding 5% back in that is 1.030...no worries there. ;)

[Bill S]

100 gallons, you want to increase your salinity about 15% = about 3-5 lbs of salt? I'd just add it to your sump over the next week, a little at a time.

[stoneroller]

Lots of options, I see, thanks.

Bill, you are suggesting adding salt straight from the bucket, right?

[hobogato]

Bill, you are suggesting adding salt straight from the bucket, right?

that is what i do, one cup (2 gallons worth of salt) a day until it is where it needs to be. i pour it into a lower flow area of my sump so it can slowly dissolve.

[Richard]

I just top off for evaporation with saltwater instead of fw. Brings it up slowly.

[Bill S]

Yup. Directly from the bucket.

Another option - However you top your water off - auto top off or a bucket, just top off your water using seawater until the salinity gets to where it you want it.

[Bill S]

Hey, Richard, great minds think alike... BTW, I'm PLANNING on stopping by later today.

[stoneroller]

Thanks all!

[5.0Stang]

I just top off for evaporation with saltwater instead of fw. Brings it up slowly.

Bingo. That's what I've always done. Your critters will never know the difference this way.
DITTO