Tank help

[Foneman02]

Just asking for some advice. ATO malfunctioned and added about 10 gallons of fresh water to 120 gallon tank. It lowered the salinity to about a 1.023. At first no problem but next day torch, stylo, and pocilipora closed up. I did a 20gal water change the next day. The water i put in i kept the salt level at a 1.026 hoping to gradually raise the salt level. Tank parameters are mag 1350, nitrate was high at 17. Cal 440, alkalinity 7. point of sale 0.04 Temp 78. How many days should it take for corals to recover and should i do another water change?

 

[chip shop]

Should only be a few days at most just get levels back to what they were and things should be fine