raising pH of FW calculator?

I need to raise the pH of some freshwater to match my SW DT.

I can't find a calculator for this.

Is it the same as raising pH of saltwater?

thanks.

 

I probably need to add some info to this

The intent here is to give a new clam a dip. I'm heating the water to match DT. I need to raise the pH too.

I suppose a simple air bubbler might do the trick? Or should I go the baking soda route?

So, I guess I don't know which to do and/or how long to run the bubbler but more so not sure on how much baking soda to raise FW pH.

I haven't got the clam yet, LFS said they have 3 in stock. ;D

Just getting ready.

 

Yes it is the same.