[bsantucci]

Looks like Utricularia. It's invasive, just pull it from the tank.

 

[Fishnshrimp2]

I had the same plant in one of my container ponds. Left it over the winter and now its filled with the stuff and smothered all the other plants with its wild growth. It's a crazy fast grower.

 

[abrooks12376]

Think it's bladderwort? Like the others said.. get it out, nothing but problems

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[robreefer]

Thanks for the help guys! This stuff sucks =(

 

[AllenPKang]

It's Looks like arrow head.

 

[monkeyruler90]

i hate bladderwort, it's the worst !