Fertilization: How I fertilize this aquarium

If just interested in how I fertilize this aquarium slide halfway through as the first half describes the biggest mistakes folks make. The second half I describe how I fertilize this tank specifically.
When fertilizing a tank with animals:
1) A deep & undisturbed substrate.
2) Avoid unconverted plants and cheap fish foods.
3) Start w. small dosages and observe what your plants respond best to.