someone says its a s. gigantea, which i can certainly see the characteristics, but it looks more like others pics of H. crispa? I guess the crispa should have pink tips and mine doesnt... we'll go with s. gigantea. For either the care is about the same plenty of food if discolored, lots of light and the only difference is the flow which is med-high for crispa and high according to most sites for the gigantea.