Rotala Rotundifolia, Bacopa caroliniana, Bocapa monnieri, Waterwheel Plant/Aldrovanda vesiculosa, Brazilian Pennywort/Hydrocotyle leucocephala, Water Pennywort/Hydrocotyle ranunculoides, Guppy Grass/Najas guadalupensis,Ludwigia repens, Elodea canadensis.
Anubias species, Java Ferns are undemanding but they're not stem plants
I dont know whats wrong. Wisteria and water sprite just failed. Although my crypt aponogetifolias kept on thriving same too with swords. Bacopa was tried but melted. Sunset hygro, it thrived but turns green and grows a bit slowly.