You will like the results of the 16hds. I run them on 4 tanks and 3 systems. This is my 7 month old 20g 18" nano cube.The AI Prime HD is definitively the best option for this size reef, is in moments like this I wish to go back in time to recover all the equipment purchased at the beginning.
At this time Im only missing the Tunze Turbelle Nano and a Red Sea Foundation test kit; no rush until I install the lights
Do you keep a blog here for the Fluval @jfoahs04 ?
Can't wait to see this system up and running.