Owing to @Patrick_G's aquarium picture, I guess he's a bit more qualified than me to talk about this. Anyhow...
Plant melting is a bit like going one pace back then 2 paces forward, in that aspect, as the plant needs to adapt it's leaves to the lighting conditions.
For instance: I have a 15 gallon cube to which added some dwarf hair grass, which was covered in algae a week later. One month later I have a beautiful planted shrimp paradise with the dwarf hair grass spreading out and looking great.