I tested my 24g reef tank and my ph tester said 7.8 ppm. I read that that it is a little low for my toadstool leather. I started to add something call "seachem Marine buffer". It says it will put your ph lv. at 8.3 from 1 day to a week. I was just wondering if this stuff is safe for my reef. I have already added it twice. once today, another yesterday.