The Planted Tank Forum - View Single Post - Need advice - algae and nitrate problem in planted tank
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Old 01-05-2013, 12:59 AM   #16
smiller
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Quote:
Originally Posted by christian_cowgirlGSR View Post
According to what the API test kit says, up to 40 is safe for the fish.
Most fish can take much more than 40. I was speaking more in terms of what those levels mean in planted tank.
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