AI Hydra 26 HD spectrum setting

Discussion in 'Reef Aquarium Discussion' started by Kevinkmk, Sep 21, 2017.

  1. Kevinkmk

    Kevinkmk Active Member

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    Hi folks,

    I am changing my light to the Hydra 26 HD. Wondering what is your successful spectrum for coral color pop and growth. I have a mixed reef with mostly sps on the top and lps (chalice, acan, socly) at the bottom. Will turning the UV and voilet same as blue will burn the corals? Any picture or info will be much appreciated! Thank you
     

  2. RyanCSGO

    RyanCSGO Valuable Member R2R Supporter Reef Squad R2R Excellence Award Build Thread Contributor

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    these are the settings I currently run. using the same as my LFS who has 26HDs over several tanks.
    both my tank the the LFS's are 20" deep, I dont think theres an issue with the violet, but watch the UV for sure.

    IMG_2247.PNG

    my tank:
    IMG_2404.JPG

    one of my LFS tanks (same settings)
    IMG_2294.JPG
     
  3. Kevinkmk

    Kevinkmk Active Member

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    Great! Thank you! Any reason why UV has to be low?
     
  4. RyanCSGO

    RyanCSGO Valuable Member R2R Supporter Reef Squad R2R Excellence Award Build Thread Contributor

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    what i was told when i bought and switched to these lights was that it would fry the coral.

    Depth of the tank, light mounting height and acclimation time will all play a part in it.
    my tank being 20" deep I was told not to put the UV above 11%

    even looking at David Saxby's tank, his UV never goes over 43% and his tank is 4 feet tall
     
  5. Kevinkmk

    Kevinkmk Active Member

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    Thanks for the update
     
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  6. Kevinkmk

    Kevinkmk Active Member

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    I do see people run it at 40% UV. What is the color effect and grow effect with UV light on corals. Sorry for asking noob question
     
  7. Kevinkmk

    Kevinkmk Active Member

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    Anyone idea on UV effect guys?
     
  8. majority_rules

    majority_rules Member

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    Wondering that myself.
     
  9. Kevinkmk

    Kevinkmk Active Member

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    Any expert using high UV level?
     
  10. oscargrumete61

    oscargrumete61 Active Member

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    May i use the hydra 26 HD in nano fusion 20gl ? size 20L 14 W 14 H , i do not want the hydra with a single cluster
     
  11. Amoo

    Amoo Professional Thread Derailer R2R Supporter Reef Squad R2R Excellence Award Partner Member 2019 Build Thread Contributor

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    I don't limit my UV as it's right in the peak of the Chlorophyll A peak.

    [​IMG]

    I also run my reds at 30%. My peak mid day spectrum looks like this:

    [​IMG]
     
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  12. Kevinkmk

    Kevinkmk Active Member

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    I'm using it on my nano with low setting
     
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  13. oscargrumete61

    oscargrumete61 Active Member

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    Thanks i gonna go for it
     
  14. Zagreus

    Zagreus Active Member R2R Supporter Build Thread Contributor

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    You should move this to the aquarium lighting forum and you will get a lot more feed back. I run an AI26HD with 4 24" T5.
     
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  15. rkpetersen

    rkpetersen walked the sand with the crustaceans R2R Supporter Reef Squad R2R Excellence Award Partner Member 2019

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    UV will cause some of the fluorescent pigments in some corals to fluoresce more vividly and/or with different colors. I don't know if it helps them grow in any way, but I would guess not, at the levels that LED lights provide. Also, with your Hydra, don't forget that you only have one 1 UV LED for every 7 blue/violet and 3 white LEDS, so the amount of photon flux that the UV LED is contributing is relatively small. Anyway, I run my UV at 55% and everyone seems ok with it.

    It would be interesting to compare the UV output of one of these fixtures with that produced by a metal halide bulb of similar overall light intensity. At least with LEDs, you can turn down just the UV if you want to.
     
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  16. nickenayat

    nickenayat Active Member

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    [​IMG]

    [​IMG]

    [​IMG]

    My tank is a IM Nuvo Fusion 24 and I run 2 AI primes. These settings seems to work for me. I've been told too much blue for long times can cause a lot of algae growth. I've had good coral growth with not too many algae blooms.
     
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  17. Kevinkmk

    Kevinkmk Active Member

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    Thank you all for the great response!
     
  18. Orm Embar

    Orm Embar Active Member

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  19. Kevinkmk

    Kevinkmk Active Member

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  20. Kevinkmk

    Kevinkmk Active Member

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    Here is what I'm trying to run right now. Might need change it up a little. Any advice? I'm using it on a nano that's why all the level is low.

    Screenshot_20170924-233441.png
     
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