what do I need to do if anything just got this ppm meater today
You need to calibrate it so its accurate if they include the calibration pH solutions. Usually 4.0 and 7.0 pH.
444 is low. By the time you are watering to runoff, your PPM should be ~1,000.
So I presume I should have more nutrients because that’s quite just got to do it Jen on YouTube
Springwater 5.8 going in 6.5 on runoff ppm going in with newts it’s only 5:40 just bumped up the noots 1200
A couple of points. Appropriate PPM levels is dependent on the plants growth stage. A PPM of 444 is what you want for a 2 - 3 week seedling. If your plant in late veg or early flower that number is 1/3 of what it needs to be. Accordingly, a raw number has no meaning.
With respect to pH, the recommended pH depends if you are hydro or soil.
For ballpark purposes I like this simple PPM chart
If you are in organic super soils or similar, the numbers can get very high and the chart may not be appropriate. Follow what supplier / manufacturer recommends.