I think 6-8 hours is about right but others with more plant experience might have a better answer
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you don't need oxygen for them, you need co2 which is a must for a planted tankTaff7996 said:I'll adjust my timer to 10 hours then
How about air bubbles for plants, how long?
DerpPH said:you don't need oxygen for them, you need co2 which is a must for a planted tank