Well if it were me I would flush my plant.
By the way is it only one plant or more ?
Are you DWC or SOIL
If it is soil flush your plant with 3 times of the amount of soil.
Example…growing pot is a 3 gal bucket then you would flush with 9 gal of water…and so on, after the third gal of. Water.
Get a water run off at the end and check your PH of the run off.
Let us know what you find out…ok ?
Will