I've been playing around with some different things. Dosing every day was just something I couldn't realistically do without an autodoser. Free time is just getting so hard to come by.
Currently, I'm doing a pretty lazy routine, but it seems to be working. I do about a 40 or 50% waterchange once every four days. I then refill with RO and add 3 tsp CaSO4, 2 tsp MgSO4, 3 tsp NaHCO3, 1/2 tsp CaCl2, and 1 tsp K2SO4.
I then add 5 ppm NO3 and 1 ppm PO4. A few minutes later I add 30ml of Flourish Iron and 60ml of Tropica traces. That's it. CO2 and lighting is otherwise automated. I've been doing this for about 3 weeks now. No problems yet. We'll see.
I'm doing a few other things differently too. I used to be an uproot and replant sort of guy when it came to stemmies. I'm going over more to the hack and let regrow side of things. For most plants it actually works out better, once you learn how to deal with growth rates and prevent shading of light-demanding species. I love the red on the B. aubertii above. It's never done that for me before.