Introducing fish to lower salinity tank after mistake

[Matthatrick]

Hi
I have been using a refractometer and it was not celebrated correctly, so my tank has been running at a salinity of 1.020.

My fish seem to be happy, I just bought 2 new butterflyfish.

Can I introduce them to the lower salinity tank and then over the next few weeks increase the salinity to get it to 1.025, or will they die?

 

[damsels are not mean]

As long as you increase slowly they should be fine. It shouldn't take long at all but there is no reason to rush so sure do it over a week. Going up is Harder on them than going down but over such a long period they will be fine.

 

[Waters]

Hi
I have been using a refractometer and it was not celebrated correctly, so my tank has been running at a salinity of 1.020.

My fish seem to be happy, I just bought 2 new butterflyfish.

Can I introduce them to the lower salinity tank and then over the next few weeks increase the salinity to get it to 1.025, or will they die?

If you are running a FOWLR, I would leave it at the lower salinity. It is better for the fish anyways. No reason to run it at 1.025 unless you have inverts/coral/etc.