Okay so I'm total noob to plants. One of my friends, is fairly experienced however, sometimes I would like a second opinion (or third or fourth, the more the merrier). Anyway, I want to create a sort of biotope for my Malawi setup. I got the rocky setup, but wanted to add plant matter to further legitimize the Malawi theme. I hear that Vallisneria is the only commercially available plant for a Malawi biotope (correct me if I'm wrong). My friend said that if I have plants in my aquarium, it would virtually eliminate the need for airstones, or to oxygenate the water because the plant will take over this duty, is this true? Question 2: Vallisneria, to my understanding, are able to withstand moderate water current, so would it be okay to keep the airstones in there anyway?