If you're in soil a feed/water/water/ feed/water/water schedule usually works pretty well. If you follow that you would be feeding infrequently enough to mix a fresh batch each time. I would think once every two weeks might not be frequent enough. What website did you pick that up on? (genuine question, I don't know how to word it to not sound accusatory or sarcastic.)
The soil you are using is considered to have a lot of nutrients already in it so you may not have to add very much to it at all. The every two week bump might be a good plan. Hence, just curious where you picked up the feed every two weeks advice.
With soil you want a wet/dry cycle so you may not need to water everyday either. Once the plant gets nice and large it can suck down quite a bit of water. Do you have a way to measure pH and ppm?
My current grow is in soil and I'm going feed/water/feed/water. It all depends on the soil, plants, nute line. Good luck!