I was reading some of the reviews for the substrate and one person said it gave him 3" of substrate in his 65 G...so would I be ok with most likely 2-2.5" of substrate or do I need more?
Oh and for the ferts, he says that the KN03 is for potassium and nitrates...So do I need to use the extra potassium?
And would I be better of buying ferts online or would I probably be able to find them at my LFS?
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