100% Java moss. It should green up really nicely although the cooler seems to be very dependant on the water.
I have a tank with co2 daily ferts and T5s, and it's a dark green, I have another tak with no co2, no ferts and a handful of fish and it's bright green.
It's good stuff, a little goes a very long way and once it establishes itself it'll grow like wildfire.