thank you!! those were actually the reef builders photon v2 tank stands. what I did was place the primes in between the rods and had a zip tie behind each fixture pressing the rods against the fixture to hold the light up. the rods fit in between the primes groove in the middle. I added a diagram lol.Looks great - can I ask what those mounts holding the AI Primes in the first photos are? I've got an AI prime for my 14 gallon nano cube and I'm not thrilled with either of the standard AI mounting choices. Thanks!