Identify this echinodorus species please

[Cheddar254]

Hi everyone,
Can you please help me identify this rather small species of echinodorus, as i would like to use it in my 2ft tank but dont know if it will get to big, heres a pic. thanks

[barmby]

Simon help!

This could be:-
Echinodorus schlueteri 'Leopard'
Echinodorus 'red flame'
Echinodorus ozelot
Echinodorus barthii

if it contain some red spots