Nissan Bluebird. Hi was driving my bluebird today warmed it up ok but i noticed the temperature guage going down below half way

ava3, Apr 18, 3:56pm
Hi was driving my Bluebird today warmed it up ok but I noticed the temperature guage going down below half way. Usually it doesn't move from half way when it is warmed up what can this be!

franc123, Apr 18, 3:59pm
thermostat is on the way out probably.

ava3, Nov 13, 7:58pm
ok thanks for that will rip it out and replace it see if that solves it.