Need help figuring out deficiency
Hey guys. I have a tank i’m adding plants to until it's heavily planted. Everything seems to be healthy, but the crypts (and edges on some water wisteria leaves) have been turning black. Everything else seems to be doing good and are really green, but at the same time everything is growing very slow, unlike the 10 gallon I had before this when everything grew like a weed.
One possible theory I have for the slow growth would be the fact that i was dealing with high nitrates (50-60ppm). Just got that under control today and down to 5ppm and will continue to monitor every other day. However, I have no idea what's causing the crypts to blacken up. The Jungle also isn't growing tall like I thought it would.
I dose osmocote root tabs and nilocg thrive as well. It is a 60 gallon tank with Nicrew full spectrum LEDS