> Sulfuric acid or nitric acid would have a more favorable effect on the nutrient profile, but they're more and much more dangerous respectively.

Sulfuric acid is not really that dangerous unless you are getting the high test stuff from a chemical supplier. You can use battery acid refill solution, it's just deionized water and H2SO4 at around 30% concentration. That's mild enough that it won't cause any immediate burns, but you should still wear gloves and goggles when handling it.

There's no need for nitric acid, since you are already supplying nitrate ions.