what is your reef tank salinity?

[Aleks]

1.026 at 78o......maybe after my evap it will creep close to 1.027 but its a small tank......15 gal.....I top off about every day and a half with 3-4L....depends on the temp....Open top tank

[mandarin man]

Thanks for your reponses,

There were days last months extremely hot. I had the fan blowing in my 35 gallon tank to keep the temp down; resulting large amount of evaporation and increasing in the salinity. Fortunately, I was off work for those days and actively and manually top off with fresh water.

In the future, i might not be too lucky when I am at work. The salinity will creep up more than .002 .

Have you guys ever heard of large change in salinity the tank causing the corals and fishes to die?