Join Date: Feb 2003
Location: Boston, MA, USA
Often Swords are grown emersed and only put into water when they arrive at the LFS. The plants will shed all their leaves and regrow leaves suitable for submersed growth. If you can post a picture of your plant we would probably be able to tell whether it was grown emersed.
The other possibility is that the tips are in a high current area of your tank. My sword closest to my spray bar had frayed brown tips on its leaves.
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