Well, I'm not much help since I have never used a regular fertilizing regime, unless you count adding root tabs. However, I'm trying to change that. So, for the past two weeks I've been using Seachem products, both in my 33g community and 8g betta tank - yes, dry ferts are cheaper, but I'm nowhere near experienced enough to mix my own stuff. I'm reading as much as I can and starting slowly, hence the small numbers. Also, I don't use CO2 in any of my tanks.
Right now the 8 gallon tank gets 4 drops of Excel every morning, 2 drops of Potassium every other day and 2 drops of Flourish Comprehensive once a week after water change.
In the 33 gallon I add 15 drops of Excel daily, 10 drops of Potassium every other day and 2 drops of Iron on the in-between days. And 6 drops of Comprehensive after every water change. If the nitrate levels drop even more (they are edging close to zero) I might have to add nitrate too.
Since it's early days, I'm just going to watch and see what happens. I have mostly slow growing low light plants (java ferns, anubias, crypts), so they don't need much. But I know they can look better.