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Setting Up SPS / Clam tank....What Lighting Do I Need?

Originally from ticket #641.

Hello, I'm setting up a new tank for growing SPS and Clams and am very confused as to what type of LED lighting may work. Obviously, I don't just want the corals to sustain, but thrive and grow. The tank dimensions are 48"L x 24"w x 30"H. I will have SPS, LPS and soft corals, as well as clams and anemones. I want to be able to put light needy corals at the bottom of the tank as well. Here's the thing....I can't go out and drop 2K all at once, so I was curious about the PAR38 bulbs. I was looking at installing 8 of them, but I've heard that they will spot too much and not be strong enough at the bottom of the tank. I've also considered 2 of the 100w white canons, possibly adding a third at a later date, supplemented with a couple of 110w VHO actinics. I'm not looking for a spotlighting effect. My canopy will be at least 18" high, if needed, so I think the canons would be fine with that. Will 2 of the 100W canons cover this tank with actinic supplementation and be able to do so without having a terribly noticeable spotting effect? Keep in mind that the rock work will only extend out into the center of the tank or somewhere in that range. I will probably have 10" of free space to the front glass. Also, what exactly do I need to be able to control these lights including dimmable function. I will probably install an Apex controller in the future, but not for awhile. Thanks so much!

By the way, the canopy is not built yet, so options are still open. I could build the canopy with a section of open top. I also just noticed you have something called the panorama retrofit. Does this item produce enough light? If so, that is another option. It would be nice to have some type of dawn / duck/ moonlight effect.

I just noticed that your coral placement guide includes no Acroporas. Does this mean they cannot be supported by your LEDs?

Dear Zach,

Thank you for contacting Ecoxotic. Hopefully we can answer all of your questions:
- Will 2 of the 100W canons cover this tank with actinic supplementation and be able to do so without having a terribly noticeable spotting effect? We would not recommend the Cannon LED pendants for a tank of this size. The Cannon Pendants are designed for much deeper tanks. We would suggest looking at the Panorama Pro LED fixtures in 24". Two of the stock units will work just fine:
http://www.ecoxotic.com/aquarium-led-lights/led-light-fixture/24-panorama-pro-led-fixture.html

- Also, what exactly do I need to be able to control these lights including dimmable function. I will probably install an Apex controller in the future, but not for awhile. These include inline dimmers, however they are compatible with the APEX system and their VDM module.

- I also just noticed you have something called the panorama retrofit. Does this item produce enough light? If so, that is another option. We would not recommend this, again, the Panorama LED fixtures would work better.

- I just noticed that your coral placement guide includes no Acroporas. Does this mean they cannot be supported by your LEDs? You were likely looking at an older version. Please see an updated version here:
http://www.ecoxotic.com/community/wp-content/uploads/2011/12/CoralPlanningMap.pdf

The 24" fixture will produce ~150 PAR at a 24" depth, if your keeping clams and SPS corals at the bottom of the tank, you may want to add one additional 12K White/445nm Blue Module to each fixture.

Sincerely,
The Ecoxotic Team

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5 Comments

  • 0
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    Matt Fisher

    Yeah, the current coral placement guide doesn't say anything about acroporas either... Something I noticed before, but assumed if one can keep Crocea clams, you can keep acropora.

  • 0
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    Ecoxotic Tech Support, Inc.

    Hi Matt,

    Correct!  In depths where clams are kept, acropora will do just fine.

    Sincerely,

    Ecoxotic 

  • 0
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    Garryclark1

    My only concern is the par for Sps predominant tank in a 30 inch deep tank.

  • 0
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    Ecoxotic Tech Support, Inc.

    The PAR at 30" should still be fine, but if your concerned about it, you can always add an additional Panorama Pro Module to ensure the PAR reaches the bottom.

  • 0
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    Garryclark1

    Honestly I believe your products do to your good feedback to be the right fit for my new tank and do appreciate your straightforward advice. The lack of good info from other less and the great expense makes me cautious. Thanks for your time.

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