Thanks guys.
It's not in the best position for flow. Think of the whole tank as a whirlpool and this is in the centre and yes I believe there is algae on those leaves...
But, the plant has only been in a couple of weeks, it almost immediately started showing signs of trouble and the new leaves are bursting through and looking good and perhaps that algae is only taking advantage of dying leaves, so I'm hoping it is just going through it's transition. I will remove the bad leaves.
Thanks for the advice.
Will the plant grow whole new stems eventually, or just grow up from where it is, cause it'll look awful....?