Yeah, I have the exact same bottle of grow big as well, its good stuff to use. Just make sure you don't use too much, you gotta get 1 gallon jugs of distilled water and mix however much it tells you into the gallon, I think its like 2-3 teaspoons per gallon. Anyways, good choice on nutes and if you can you wanna get a bloom fertilizer come time you start your blooming, fox farms has one called big bloom which works great.