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Najas marina


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One of my ponds is about 1/2 covered with what I have identified as Najas marina, or Spiny naiad, spiny water nymph. It is closely related to Guppy Grass. It thrives in extremely hard water. I have been using it in my tanks with Goldfish, White Cloud Mountain Minnows, Mollies and Guppies and they all seem to love it. It grows rooted in the pond but I just float it in the tanks. The fish nibble off the roots faster than it grows floating in the tanks, so I just put a new bunch in every week or so since I have an unlimited quantity available. Would there be a market for this plant? I have seen no sign of it in the aquarium trade.

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