short answer, light, flow, minerls, nutrient level management.
Long answer: you are going to be more specific as to what you want to grow and what you are doing now
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Jeremy
Brown liquor never hurt anybody
“Je n'ai pas besoin de cette hypothèse" Pierre-Simon Laplace
I should want to cook him a simple meal, but I shouldn't want to cut into him, to tear the flesh, to wear the flesh, to be born unto new worlds where his flesh becomes my key.
Current Tank Info: broken and dry
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