Plant Identification

Byron said:

Yes, the algae is black beard. I responded in the other thread, it would be best to keep this issue in that thread; havng two threads on the same question can lead to confusion, plus everyone may not see all posts.

As for this plant, I think it is Wisteria (Hygrophila difformis) which can develop broader less pinnate leaves, depending upon light and nutrients. A root tab will not provide much, but a liquid comprehensive supplement will; these plants like most stem plants assimilate some nutrients via the roots and others solely via leaves. And roots will (may) develop from several nodes along the stem in water.

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