Join Date: Jan 2019
Location: Herndon, Virginia
Lifespan of dirt as substrate
Folks, for both my 29 and 72 gallon, I added dirt last summer and capped it with gravel. When I bought the potting soil from home depot, I saw that on the package, it said, "will feed your plants up to 3 months."
So now that it has been about 6-7 months, I am trying to figure out, how long is the soil good for as far as nutrient values go? In another word, do nutrients deplete over time? If they do, then around when? And what do I do then? Add root tabs?
I am planning to redo both my tanks. So I want to learn and then be prepared then.