If you have the HD series, use this to plug in. You have a single puck of the Hydra 26/52HD. The profile I'm posting is a mock Ecotech Marine SPS AB+ profile. A few of us are using it on our Hydra 26/52HD's with pretty amazing success. My Acropora absolutely love this profile!
This profile below is for fixtures that are around 12" off the water line. I'm going to assume your fixture is around that height.
https://1drv.ms/u/s!Akco_cmvvLNrgZhvyvRF4Kf5orQL7w