hdtran
New member
Don't sweat the pH too much (yet). What's happening is that your ammonia (which is basic) is slowly going down, while nitrite and nitrate ions (negative ions, release H+ ion in water, e.g. acidic) are going up. Your substrate hasn't caught up with buffering out your chemistry yet. If your hypersalinity treatment has killed anything, it's only macrofauna (e.g. sponges, cup corals, tunicates). It hasn't killed your bacteria, nor has it affected your live sand. Those are the important 'critters' for cycling your tank.
The important thing to observe is that the ammonia is beginning to go down (I do assume your tests are accurate, or at least, repeatable, to the significant digits that you are reporting) while both nitrite and nitrate are rising.
Easy for me to say, of course, since it's not my tank. If it were my tank, I might either throw in a teaspoon of buffer (I have both Kent buffer, which is a liquid, and SeaChem, which is a powder) or do a 25% water change (I know people will argue that this slows the cycle, but I'm patient).
The important thing to observe is that the ammonia is beginning to go down (I do assume your tests are accurate, or at least, repeatable, to the significant digits that you are reporting) while both nitrite and nitrate are rising.
Easy for me to say, of course, since it's not my tank. If it were my tank, I might either throw in a teaspoon of buffer (I have both Kent buffer, which is a liquid, and SeaChem, which is a powder) or do a 25% water change (I know people will argue that this slows the cycle, but I'm patient).