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I do use Mega Crop but I don't use it each time watering I have been doing nutes in veg stage every other watering. That's just me, i'm rather conservative with my nutes, I've been growing many many years outdoors very rarely ever have issues with nute lockout. But indoor a whole nother ballgame. It really is smelly fishy and I mix it with guano poop for tea everyother watering during veg. I don't see a burn tip at all with that mega crop. It's really strong though.
I ran MC last year in my hydro system, so they obviously got fed continuously but I also used it on my outdoor plants and mothers in soil. They did just as well as the hydro when fed every time.
I use Jacks 3-2-1 now. Same deal-feed eveery water.
I use it every watering, but at like 1/2 the dose recommended on their feeding calculator. In mid flower, I'm currently doing about 3g / gal every watering. The leaves are dark green, but not seeing any burn or signs of N toxicity.
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