I don't know that it is necessary. Instead, just keep up with your regular testing. Things look fine, just high nitrites, which is perfectly normal. Keep an eye on your pH. If it starts to fall, you can do a huge water change to remove the nitrates again. If the nitrites don't come back onto the scale in the next week, I would do the water change anyway, as your nitrites might be way too high for the right bacteria to thrive.