It all depends on what is in your tank.. If there are Sensitive inverts/fish in your tank it very well could.. But its hard to say... Every tank/livestock is different.. If they are very healthy it shouldnt affect them too bad however I would slowly raise it back up to 1.025 over the course of a couple of days.. not more than .001 per day..
I added too much fresh water when I topped off
What I would do is mark where your tank is when you get the salinity corrected.. When you add FW
add it only to the mark that you made.. You should never have an overdose problem again..