How many clones under 400 watt?

How many clones of white rhino and hashberry could I fit uder a 400 watt HPS?

i think that might depend on how big you want to grow em

i think that might depend on how big you want to grow em

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Yep. You only have so much light to go around, so you can grow a lot of little plants or one big plant.

i use 400watt hps lights in my 4x4 grow rooms, if you are going to have small single top clones at flower then you can fit up to 36 if they are in six inch containers, if you are wanting medium height then 16 spaced evenly will do, or4 large plants with the branches tied down .

I have had over 150 clones in a 4x4 tray before, but they were rooting in party cups.