[nycsicktank]

These are same plant.

 

[nycsicktank]

no one?

 

[jmf3460]

your pics are not clear enough to tell, the only one I could even make a guess on is the second picture and it is CAMBOMBA GREEN

 

[Kat12]

first looks like naja grass

 

[The Trigger]

I think the first one is stargrass and the 3rd is either HC or regular baby tears

 

[Raymond S.]

It looks too stocky for Najas so I will go/w star on the first one. I have native Najas
and I have no idea if that makes a difference but it is thin compared to that.
Possibility for third picture.
https://search.yahoo.com/search?ei=utf-8&fr=slv1-iy&p=hemianthus micranthemoides pictures&type=

 

[Tinanti]

2nd is a Limnophila (sessiliflora/heterophylla/indica?).

Rest need better pics.

 

[nycsicktank]

2nd is a Limnophila (sessiliflora/heterophylla/indica?).

Rest need better pics.

actually close, Limnophila aquatica! thanks

the rest, ill retake the pics

 

[Tinanti]

actually close, Limnophila aquatica! thanks

the rest, ill retake the pics

It's impossible to tell all those apart without emersed/flowering specimens. Could be aquatica too, but I'd lean toward one of the others.

 

[Le'Roy1988]

The 2nd pic looks like hornswort... Like the others have said the pics look unclear... But not sure...


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[Indian fern]

First pic looks like Naja or guppy grass
Second pic is Limnophila sessiliflora
Third pic is really unclear
Fourth could be a marsilea or glosso.