This tank had a few upgrades in the past two weeks - added a small 7.5w heater to take the chill off the water, installed a Beamswork 18" LED fixture (~30 PAR at the surface).
Here is the tank (top one) - the bottom two tanks are some experimental emersed stuff:
The fissidens is still barely recovered, but I have a nice healthy 2x2 bunch from nyxkitten thanks to his recent RAOK:
Some other mosses (java, peacock, and ?)
Top shot showing the new light fixture: