Shadowswittness

I tried the root tabs and the tank went cloudy as all hell. I let it settle for over a week and tested the tank. Everything was baseline for fish, plants, pH and nitrates almost zero. Tank has been going for about 3 weeks with plants and the shrimp. So far only 1 plant death but was my fault lol. Is that normal levels by then? Gh 120 Kh 40-80 Ph 7 NO2. 0 N03 0

I bought the Easy Green fertilizer. Is it a good choice for a gravel/river rock substrate? I have ghost shrimp and a lyretail molly. Will it be safe for them? First time adding plants to a tank.