Need to stop using the Super Thrive in flower and start reading some of these posts more. Super Thrive in flower has been talked about around hear several times in just the last month. When used in flower it can leav you with stringy and loose buds at the end. Always do a search on Nutes before you use them IMO and find how people are using them on MJ to be safe.
Other fella is probably right about your question, just flush with water and baby things a little.
Adieu