With the T-5 lighting watch out for co2 problems. They can look the same as nutrient deficiencies. I had a problem with my 46g when I switched to T-5 lighting and thought it was nutrients, but after awhile I tried Seachem Excel and it melted some of my stems like the Egeria densa, but the rest of the plants perked up. I am currently running the original lighting, but it isn't as nice to look at as the T-5's. I really wanted the Egeria densa "Anacharis" in this tank thats why the cutback on light.
Anyway..your tank looks great! I have a great place to buy fertilizers if you need any. They even refund some shipping if it costs less.