here is a pic of my tropica sword...see the brown spots on the new leaves? Look closely in the background and you will notice the jungle vals with messed up tips...What is causing this? Nutrient deficiency? Help?
The first appears to be Ludwigia Repens (Red ludwigia) although if the leaves get smaller instead of staying about the same size, it may indeed be rotala rotundfolia (indica), the second is a Melon Sword. As to your Vals melting, check your KH and pH. If they are lower on the range Vals do not like it, they need high KH and Neutral to Slightly high pH. Chris (the CAF 1/2 of TAF CAF)
The sword is as orginal post says: the Tropica sword, ie. Echinodorus parviflorus 'Tropica'. It'll change more still... will grow smaller as it still looks mostly like the emersed form. The submersed leaves are more curly/crinkled.