Back at it. Need some help.
Been a long time since running a tank and finally getting back into it.
So far I have my tank(90g)filled, rock in(80lbs), substrate in(40lbs), filter running. Tomorrow I am adding the salt and trying the skimmer.
My question is, I have a bag of salt that has been in storage for a long time, no markings no instructions not sure of the brand. I used instant ocean before but this could be something else. Is this salt ok to use and is there a general rule for any brand? I have a salinity tester and just need a place to start at.