Tides occur once or twice each lunar month.Spring tides are tides that are much bigger than just regular high tides. Sping tides are alot stronger and no they do not come because of spring.
There is a new change of tides every 24 hours and 50 minutes.
When we orbit the moons gravitation pulls the bottom of the earth and that is sorta saying pulls the ocean and when it pulls out it is low tide and when it pushes in that is high tide