Maybe but you shouldn't have a problem. Did you test the PH and TDS of the run off? The only 2 problems I can think of would be the PH being off or signs of over watering and both should be easy enough to fix. The best advise I can give you is to be patient. You shouldn't have to water again for a while. Pick the pot up and feel how heavy it is, when the pot is light but before the leaves start to droop is when you can water again. Watch the plant if it droops now and the coco is still wet then that's over watering and the only thing you can do is wait for it to dry out a bit.
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