I am currently watering every other day. Should I increase feeding to every time I water?
You should water when the soil is exceptionally dry (lift the container, it should feel light. But, don't wait until the leaves droop/wilt. If you do, they'll bounce back within 30 minutes of watering. It can be useful to do that a time or two to learn what "too dry" feels like when you lift the container.).
I feed every watering. I haven't heard a rationale for alternating except that it allows the soil microbes to recover from the synthetic nutrients. But, to me, it seems like "6 of one, half dozen of the other." I.e., clobber the microbes hard, then nothing? Or, hit them lighter each time? It doesn't sound like a difference. If you're going to give them a tablespoon every other feeding, just give them 1.5 tsp each feeding?
That's the way I look at it. The only thing I've heard which makes sense of alternating feed/water is if you want to give so-called innoculants (mykos tea, etc.). Then it makes sense to keep the living (fungal, microbial) tea away from synthetic nutrients.
Maybe someone has other reasons to alternate which I haven't heard yet.