Pps-pro in a low dosing

[Patrice]

In my planted aquarium, i have pps-pro in a low dosing, and gradually adding more as the plants grow.

1) is this ok?

2) is my macro and micro suppose to be all used up at they end of the day. (close to 0 ppm)?
exemple:
i have (po4 = .5 ppm) at the start of the day and finish at (0.25 ppm).
or have (0.25ppm) at the start of the day and finish at (0 ppm).

 

[Patrice]

I really need help on this on.

 

[aqua_chem]

You don't want to run out of anything at the end of the day. Rather, you should be replacing what your plants used during the day. 0 ppm phosphate OR nitrate have both been linked to different types of algae (GSA and BGA respectively).

 

[Patrice]

What i mean is, should i have every fertilizer macro and micro close to 0 ppm at they end of the day. To reduce algae bloom.