High salinity

[maximax]

Hello fellow reefers,

Wondering about the consensus among more experienced reefers. I screwed on refractometer calibration and as a result my new tank has been running with 38-39 ppm salinity for 5 months. Corals (some sps, and lps) are doing okay with no sign of stress, even growing (sps). Water parameters are within normal range.

Now that I have figured the salinity issue and refractometer calibration, what would be the best action to take :

a) daily swap around 1 liter of aquarium water with rodi water (via sump) until salinity stabilizes - quicker but riskier

b) weekly water change (15%) with new water with correct salinity- slower but less riskier

c) do nothing and keep running everything as is - big question mark…

Tank is aio , around 40 gal (120 liters to be exact).

Appreciate any thoughts on that!

 

[penfold2]

I would go with the first option. One liter is a good amount to change per day. Your salinity will only drop by about 1/3ppt per day, which should not be enough to bother even the most delicate organisms. You could split it up into a half liter morning and evening to make it even more gentle.

 

[Mr. Mojo Rising]

Agree first option

 

[PharmrJohn]

Agree first option

Yep.