Q: "What about tides?"
A: The tides exist due to a slight see-saw effect on the earth. As it goes back and forth, the water rushes to the side that is lower. Note, this is a very slight wobble. Remember, these wobbles are created by very minor earthquakes. They keep the tides in check. Notice that large earthquakes result in large tides or "tsunami".
How, then, do the tides correspond with where the moon is in the sky?
Additionally, if gravity of the FE moon is the real culprit of the tides, what makes the sun different, especially if both are approximately the same distance in the sky? "Because the sun isn't the moon" is going to be a guess as to what's going to be said.