Well the neptune is organic so it would probably make for a better tasting bud in the end, but you will need to use more of it since the npk values are smaller than your other nutrient. I would try to stay away from a 20-20-20 nite if it were me, seems to strong and could burn plants more easily, and you usually want something with the hightest value in phosphorous for flower. I use neptunes micro blend in my setup and it helps out nicely, so I would assume their other nutes will work fine