I would dose your nitrates up to 10 - 15 ppm. Then watch them over the next few weeks and see what you need to do. You can use this as a guide:
but each tank is different. As your plant mass grows, your nutrients will be depleted faster. Then if you do a big trim, they nutrient use will go down. Over time you get the feel for what it needs.
Standard 10 Gallon (20 x12x12).
Low tech, Sand substrate.
Eheim 2211, w/Purigen and Aqueon Quietflow 10.
Finnex Stingray LED, 20" above substrate
Anubias, Narrow leaf Hygro, Christmas moss.
6 Kubotai Rasboras, 2 amano's and 11 Blue Neocardia shrimp.