Salinity and corals?

I am going to buy some frags this weekend and I have a question. As of now my SG is 1.23. Should I wait to buy frags until my SG goes up a little? Most of the tank specs I see, most SG levels are 1.25 or 1.26. Why is that? I understand the other perameters being the way they are, but just don't get why SG levels need to be so high.

Theirs probably an easy explaination for this, but I had to ask. Thanks.

 

you can put corals in that. next water change just make the new water 1.025....or when you add top off water add saltwater to raise salinity. 1.025 allows more trace elements in the tank.

 

I think for most corals 1.024 to 1.026 is fine. I keep mine at a 1.025 so when it goes up because of evaporation my salinity wont go above 1.026. Remember 35ppt which is the salinity of seawater, is a 1.026.

Edited for typo. Sorry.

 

Good answer but it's 35ppt

 

Crap. typo.

 

I knew that you knew this.....but I wanted to make sure they knew this.