Well, I just happened to stumble on this thread and surprised to see my tank in the discussion. I refuse to argue the point being discussed. It is an old arguement that can be seen over and over. Do a search and I assure you it has all been said.
But to clarify a few things. My tank is almost 8 years old. I have every type of SPS that is available (acropora, montipora, seriatopora, pavona, pocilpora...there are close to 20 different SPS colonies) though I would consider it a mixed tank. They are all thriving both in color and growth.
As for "blue" acoporas. I have a bright purple robusta (upper right) and a tortuosa (cant see it) that have retained their color very nicely albeit they are high up in the tank. I promise, all my SPS are doing much more then just "surviving". I also recently added a acropora solitarensis that is already showing agressive new growth and changed to a beautiful aqua blue/green.
There are also two clams, a ultra maxima and an electric crocea. The maxima has been in there for over a year and has grown significantly with no color fading. Ther are on rock and not on the sand bed.
Due to the agressive growth of my SPS, I just set up a 40 breeder to aid with the export of frags. I hooked it inline to the 120 so it has near identical water parameters. However, I have a 250 W 10k DE lighting system over it. I hope to share concrete examples soon of how the exact same coral does under the same water conditions using two different type of lighting.
I never intended to be the poster child for VHO. Eight years ago these boards were not available and MH lighting was (and still is) confusing at best. VHO technology was easier to grasp and implement and I have never had a reason to switch.
Now, be good little reefers and go back to the garf bashing that I expected to see....
Paul
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Ferrari F40