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Yes, you can use pH Minus designed for flowering during the vegetative stage as long as it’s a standard pH down solution, typically based on phosphoric acid, citric acid, or sometimes nitric acid. The label “for flowering” usually just refers to marketing or slightly adjusted formulations, not something that makes it harmful during veg. But here’s what to check: 1. Ingredients: • If it’s phosphoric acid-based: totally fine for veg. Common in most pH down products. • If it’s nitric acid-based: actually better for veg, but rare in commercial “flowering” products. • If it’s citric acid-based (organic lines): safe, but can be unstable in reservoirs. 2. No extra nutrients? • Some “flowering” pH products might have trace nutrients (like PK boosters). You don’t want those in veg — check the label for anything more than pH adjustment. Quick tip: Use it carefully, just a few drops at a time, and test with a pH meter or drops. Ideal veg pH: • Soil: 6.2–6.5 • Coco/Hydro: 5.8–6.2.