I do.
The diatoms will just go away once the tank matures. The best things you can do is keep up maintenance, and increase the plant load. You will never be able to starve out algae, diatoms and the sort. You will starve the plants long before that happens and in return feed the algae what they want.
The pH KH chart assumes no other acid sources, just the carbonic acid created through co2 injection and the relevant pH drop. These charts are poor indicators as the process of nitrification creates weak acid in the tank.