Ok my friend asked me about specific gravity cause he has an issue of it being around 1.028. So he asks me how does he lower it, and I did not know what to say cause never really had that problem.
If your saying that he doesn't top off with fresh water but only fills it up when he does his water changes then yes, that could contribute to the high sg. If his tank is evaporating water and is being refilled only by the salt water then the sg will slowely climb