I'm sorry for the delayed response, things got crazy in life both at work and in tank/house planning. The tank will be in a fish room behind a feature wall with a hole cut out just for the tank, so the lights will be hung from the ceiling behind the wall. No good on the tank.
I've written to both Kessil and AI and they both recommended surprisingly low wattage lights if viewing is the only requirement (i.e. intensity not needed for corals). Kessil recommended 3x A160we and AI recommended 3-4x Primes. My tank maker showed me a picture of a fish only tank lit by just 2x AI Hydra52s (non HD) set at below 40% intensity so he's pretty confident of the penetration of the AI Primes given that they use the same wattage LEDs as the Hydra, just a lower number of them.
I've written to both Kessil and AI and they both recommended surprisingly low wattage lights if viewing is the only requirement (i.e. intensity not needed for corals). Kessil recommended 3x A160we and AI recommended 3-4x Primes. My tank maker showed me a picture of a fish only tank lit by just 2x AI Hydra52s (non HD) set at below 40% intensity so he's pretty confident of the penetration of the AI Primes given that they use the same wattage LEDs as the Hydra, just a lower number of them.
