Many new growers start with FF Trio, myself included. Not sure how many stick with them. You can be successful with them, but you may find you will end up with ph issues and deficiencies. If you use them start to finish ,FF reccomends flushing with Sledgehammer flushing agent at various intervals. After having issues I switched to Jack’s 321. I’m going to link a thread that you can check out. This is the way I chose to go, but there’s many other nutrient lines that I believe would be better than staying with FF Trio. Here’s the link, read through it, it covers most of what you need to know about Jack’s. It would also be a good place to ask questions about other nutrient lines
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