I posted new pics of the 120g see if you can point me to what in the tank it closely resembles. I had a stem plant sold to me as 'needle leaf' I think was Rotala but it don't do well in my tank at all. The needles were 2 ton the tips were red but the stem and the parts of the needle closest to the stem were green.
The one plant should be Rotala Colarata slightly longer narrower leaf with more vein definition than the Rotala rotundifolia. I had it nice and red once upon a time but ever since I changed my lights from PC GE 9325K it has never been the same.