Hi,
The compressed grain also will "melt" in due time.
The nutrient after sometime we tend to buy things like "Root monster" to supplement the dropping value of nutrient inside the soil.
Naturally, there are several other types like 7 Balls (JBL)... ect ..... up to the consumer to choose and try. (Root monster is around $18 FYI)
This is a reference where you can see "Root monster"(of course not necessary to so "kiasu" to buy now. )
http://www.aquariumplantsandsupplies...ter-12-pcs-set
Reference for the "Balls"
http://www.aquariumplantfood.co.uk/f...nutrients.html
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