If you follow the directions on your houseplant fertilizer, you will over-fertilize your poor plants. More is not better. After all, the fertilizer company is in the business of selling fertilizer; they're not in the business of saving your plants.
Fertilizer should be applied during periods of active growth, and if you look outdoors, you can see this means not-during-the-winter. Plants in low light situations (e.g., 6 weeks before and after winter solstice) do not benefit from fertilizer. My rule of thumb is to stop fertilizing in November, December, and January. I stop when the spirits go into the earth (All Souls Day = November 1, and i start when the earth spirits peek up again on Groundhog Day.)
Our plants need a rest from grow-grow-grow,
and we need a rest from go-go-go.