Interactive PAR map of coral species

Discussion in 'Lighting' started by RiaanP, 7 Mar 2012.

  1. RiaanP

    RiaanP Moderator

    Joined:
    11 Aug 2008
    Posts:
    23,155
    Likes Received:
    1,229
    Location:
    Centurion
    butcherman likes this.
  2. AdS Guest




    to hide all adverts.
  3. butcherman

    butcherman Moderator MASA Contributor

    Joined:
    7 Sep 2009
    Posts:
    11,626
    Likes Received:
    280
    Location:
    Kempton Park
    Last edited by a moderator: 26 Nov 2015
  4. brianc47

    brianc47

    Joined:
    28 May 2011
    Posts:
    74
    Likes Received:
    1
    thanks for this!
     
  5. mariusmeyer

    mariusmeyer

    Joined:
    7 Jul 2009
    Posts:
    3,054
    Likes Received:
    210
    Location:
    Jukskei Park, JHB
    Dont know if I agree with all all of their placement suggestions. A fungia in low/medium light coral that needs to be placed on a sandy bottom, and they say it should be high to very high. There aint no sand that high up in the tank.
     
  6. butcherman

    butcherman Moderator MASA Contributor

    Joined:
    7 Sep 2009
    Posts:
    11,626
    Likes Received:
    280
    Location:
    Kempton Park
    There could be if you plan it correctly ;) I think they are indicaring the optimum range for all corals.
    It's not to say the corals will not grow at lower light conditions.
     
  7. RiaanP

    RiaanP Thread Starter Moderator

    Joined:
    11 Aug 2008
    Posts:
    23,155
    Likes Received:
    1,229
    Location:
    Centurion
    I mailed them, asking about the plate coral placement. Lets see what they say.
     
  8. archiecrain

    archiecrain

    Joined:
    23 Jun 2010
    Posts:
    1,391
    Likes Received:
    59
    Location:
    Fourways
    nice
     
  9. Tremayn

    Tremayn

    Joined:
    21 Mar 2010
    Posts:
    5,226
    Likes Received:
    69
    Location:
    Lenasia
    thanks! How much are par meters again lol?
     
  10. erratiC

    erratiC

    Joined:
    8 Dec 2010
    Posts:
    804
    Likes Received:
    22
    Location:
    Durban
    The seneyes go for R1699. While stocks last! :p
     
  11. Jamie@Vertex

    Jamie@Vertex

    Joined:
    6 Aug 2011
    Posts:
    189
    Likes Received:
    17
    Location:
    Germany
    Interesting, since the newest studies show that most corals have reached light saturation at about 300-400 PAR! Most Pocilliporids are actually in a type of dormany due to light saturation 9 months of the year on the reef! Folks, less is more with corals.

    Of course, some people have to cook their corals before they understand them.

    Jamie
     
  12. magman

    magman

    Joined:
    31 Jul 2009
    Posts:
    2,144
    Likes Received:
    21
    Location:
    Richards Bay

    I think it is the type of light spectrum, I have seen a frag farm where zoas are under 20k 250w mh, and they don't do well, where I have seen them in a newbies tank where he bought 4-6k 54W T5's, and the zoa's went mental,

    Corals must be matched to the spectrum of light where they occur naturally in the wild, eg, frogspawns will do better under a 20k, and zoa's under 4-6K, as they appear in the tidal zone, being exposed to direct sunlight between tides
     
  13. Jamie@Vertex

    Jamie@Vertex

    Joined:
    6 Aug 2011
    Posts:
    189
    Likes Received:
    17
    Location:
    Germany

    I think you're right, but look at the PAR rating that is recommended for Euphyllia! Sorry, they will toast over about 300 PAR. They come from turbid waters with extreme water movement, which reduces the effects of the light. This kind of light suggested in an aquarium would simply kill them.

    It is really pretty simple, most reef-top corals are in a state of photoinhibition for half of the day, if they are near the surface, where these high PARs exist. Now, why would they not prefer to have less PAR in an aquarium whereby they can exist without being stressed under extreme PAR. (in my tank, corals look there best under approx 250PAR at aprox 12-14K leds)

    We are seeing a classic example of PAR becoming a Word du Jour and being completely misunderstood. More is not what corals want, they want proper PUR (this is the balance of spectrum you were alluding to) at a reasonable PAR.

    Here are two interesting papers that not so much support lower lighting intensities, rather extrapolate on what is actually happening under high light conditions and the factors involved in coral bleaching. I think they help give one an idea of how complex the situation is.

    http://www.int-res.com/articles/meps/183/m183p073.pdf
    http://www.climateactionproject.com/docs/WestSalm.pdf

    Jamie
     
  14. seank

    seank

    Joined:
    24 May 2007
    Posts:
    11,984
    Likes Received:
    119
    Location:
    North of Durban and South of Mozambique
    Spot on, thanks Nemos for explaining it to me some time back

    :lol: I am laughing at the way you say it, but you are right. Seen it a few times in tanks
     
Recent Posts

Loading...
Similar Threads - Interactive coral species Forum Date
interactive PAR map of coral species Lighting 26 Feb 2013
Interactive Clown Triggerfish in stock :) small - R1200 JungleAquatics.NET BLOG 16 Dec 2014
All fish can be tamed... Hennie's super interactive Manderan and his buddy Yello... JungleAquatics.NET BLOG 18 May 2014
Beatiful Coral Shipment Pet Lovers Emporium Thursday at 15:39
coral help for covering a large surface area General Discussions and Advice Tuesday at 12:03
Coral WYSIWYG Shipment - Nov 2016 JungleAquatics.NET BLOG 27 Nov 2016
Coral Shipment November 2016 JungleAquatics.NET BLOG 26 Nov 2016