Water in QT tank dropped to 1.005

Freed

It's what it's
My brother checked on my tanks this week while I was in MI, bless his heart, but unfortunately when he topped off my 20 gallon QT tank he did turn the ball valve off to it but just not quite all the way. This allowed about 50 gallons of fresh water to empty into the 20 gallon tank over a 2 day period. When I got home today I noticed what happened and checked the salinity in the tank and it was at 1.005SG I have been taking water from the tank and then replacing with water with a salinity of 1.025

I have a colony of acan lords in there along with a newly acquired colony of yellow/purple duncans. The acans look pretty good but the duncans are totally closed up and really mad. How long should I take to raise the salinity back up to 1.025 where it was at on Wednesday before all this took place? Can anyone help? Thanks.
 

Freed

It's what it's
Yes but that is for fish. I'm not sure of the effects of raising the salinity slowly or quickly with corals. Thanks though.
 
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