I have one 315 LEC in a 3x3x6 tent with four autos in a five gallon and one in a two gallon.. Every three months I harvest no less that one pound of dank buds.. so it's certainly not your light setup... one 315 works the best for a 3x3 area.. there are plenty of ways to increase your yield.. training... defoliation... feeding more vigorously... picking bigger strains... adding more perlite to the medium for better drainage and airflow..
Just stick with what you have and just tweek some things..
Just stick with what you have and just tweek some things..
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