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#4
09-30-2003, 05:01 AM
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You've probably mentioned this before, but what have you got for rock/sand? Nitrate should be 0 and PO4 as close to 0 as possible. Having enough rock and/or sand should eliminate nitrates all together. How old are the bulbs? Shouldn't matter, but good to know.
Digitata is known to grow like a weed, so 4 months and you should be pruning the excess. What is the temp? And as Jack said, circulation?
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Brad 
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