Need help

I harvested my 6 plants and only got 15.56 oz
1600 watt soil
My Crystal did great getting majority of the weight between 4 plants but my 2 GDP fudged me with like a oz a plant
So the big jars are half gallon the small are quart each
Big are Crystal
Small GDP

Weight depends off genetics, grow environment, and how healthy you can keep them throughout the grow. Just keep growing, and you will constantly learn.

Agree with Figgy, many variables affect the outcome.