1st grow, critical purple autoflower, in tent 600w led, 18 " distance, temps 75-80, humidity 50-55%, 18/6 light schedule, just curious as why it looks so different from pics of other auto of some age, are these in preflower or flowering, in fox farms happy frog 50/50 pearlite, started fox farms tiger bloom every other feed at 21 days, any input or advice greatly appreciated thanx again
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Looks great. But, Tiger Bloom is expected to be used with the other two "Trio" bottles. Alone it's 1-4-2 NPK ratio. You're going to have N deficiency with that by itself. (That's like "bloom booster" ratio). If you're in Wk 4 of the feeding schedule you'd be mixing equal amounts of TB with Growbig, creating an NPK ratio 1.4-1-1.1. Proportionally, that's 3 times more N. The schedule doesn't do 1-4-2 ratio until the last week or two.
Disclaimer. I haven't used FF products. If you follow the schedule, you may want to use half-strength. That's a rule of thumb for any manufacturer's schedule, until someone can tell you a safe strength. Sometimes you can folllow a schedule exactly as it is. Other schedules will burn or have salt buildup. I don't know about the FF "trio" in this regard. Happy Frog is fairly strong at NPK 0.30-0.30-0.05. That might influence how much you reduce the strength of the "trio" schedule. 25% strength might be wise. I don't know. All I know is TB by itself isn't balanced. I've seen people do what you're doing and have a lot of yellowing. If you were in mid-flower, that might be desirable. Some growers like to cut N a lot then. But, for the stage you're in, it's definitely too soon.
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