Metal Halidea... Who has gone back or is still using them?

Discussion in 'Lighting' started by irie ivan, 21 Apr 2015.

  1. irie ivan

    irie ivan MASA Contributor

    Joined:
    6 May 2007
    Posts:
    3,149
    Likes Received:
    171
    Location:
    Bracken
    Just curious, as I am toying with the idea of roasting some corals, and thinking to either go with some additional leds to suppliment my T5's or to go add either 1 x 250 or 2 x 150 halides on my 900x300x400 tank together with my 4x54w T5's
     
    Last edited: 21 Apr 2015
  2. AdS Guest




    to hide all adverts.
  3. zippy

    zippy

    Joined:
    30 Nov 2014
    Posts:
    588
    Likes Received:
    98
    Location:
    Alberton
    the shotgun approach, I took mine down about 8 months ago cause I could run 3 LED chips with the same amount of power consumption.

    They are very effective, however they consume power and make plenty heat.
     
  4. 4age

    4age

    Joined:
    23 Feb 2010
    Posts:
    3,547
    Likes Received:
    106
    Location:
    Cape Town
    I think south Africa has a very different view to leds compared to other countries..i know sps guys have been going back to t5 and MH as they do not see same results with leds...here in south Africa the electricity means the running cost of mh are higher than t5 or led coz they chow current

    if electricity was cheaper I would be running a MH/T5 combo with additional led for colour:p
     
  5. Suhayl

    Suhayl

    Joined:
    24 Sep 2007
    Posts:
    1,230
    Likes Received:
    18
    I'm using them for about 20 years now, fastest way to grow corals and they love the intense light. I don't mind the electricity bill, reef keeping an expensive hobby.
     
  6. KeeganP

    KeeganP

    Joined:
    23 Jan 2008
    Posts:
    1,880
    Likes Received:
    53
    What corals are you going to be roasting...? :p

    I'm not sure about LPS etc,

    If I could add my 2c.

    I switched from 150w MH to 70W LED and the growth I'm seeing is way better.(On zoas)

    I think there is more to it than intensity and wattage.(In some insistence's)

    I believe the whole sunrise and sunset simulates growth and makes the coral feel their in "natural" environment. :) my 2c
     
  7. irie ivan

    irie ivan Thread Starter MASA Contributor

    Joined:
    6 May 2007
    Posts:
    3,149
    Likes Received:
    171
    Location:
    Bracken
    Its got to do with CRI, and intensity and even spread of all the colours , something that LED doesnt seem to have achieved yet, except MAYBE in the very top end toys. It all seems like tge proverbial disco ball effect to me.... The new cob chips seem to be getting there.
    On my 1.5 x 0.7 x 0.6 I ran 2x250 mh, 2 x 150mh and 6x 54w ati... Yes, i fit them all in... Tightly!
    I am well aware of the running costs and heat and globe replacement, but I'll deal with that...
    Did not intend for this to be an LED vs whatever thread, just want to see if i am the only crazy one still thinking halides in this LED crazed hobby.
    Stumbled on a huge tgread on RC this morning which definitely has me thinking that I am not all that crazy ;)
     
  8. irie ivan

    irie ivan Thread Starter MASA Contributor

    Joined:
    6 May 2007
    Posts:
    3,149
    Likes Received:
    171
    Location:
    Bracken
    Have ordered a 10w LED spot and an actinic chip to put in it, will receive it today... Have a 250 halide thats lying around, at this stage its 4xt5 & 1x250, or, 4xT5 & 5x10w led or 4x T5 & 2x150mh.
    If i can find someone to build me a neat looking box to fit my 250 reflector in.... Its really a no brainer which way I'll go
     
  9. irie ivan

    irie ivan Thread Starter MASA Contributor

    Joined:
    6 May 2007
    Posts:
    3,149
    Likes Received:
    171
    Location:
    Bracken
    So not many still running halides... Decided to use the 10w LED spot as a moonlight, and installed my 10k 250W halide. Will add anoyher 10W spot as well, and replacing the 10K with a 14K BLV. Once thats in, will decide if the 4x54w should all be blues & actinics, or leave in a coral plus.
    Let the roasting begin ;)
     
  10. Clowning

    Clowning

    Joined:
    8 Jul 2012
    Posts:
    1,039
    Likes Received:
    78
    Location:
    Schaapkraal,Cape town.
    I have gone from MH>LED>LED/T5 and now back on T5 I just didn't see the same growth with LED. I liked the colours but growth was slow. If I could I would go back to my 250w MH 20k
     
  11. DeanT

    DeanT Dean

    Joined:
    16 Jun 2009
    Posts:
    1,850
    Likes Received:
    25
    Location:
    Claremont, Cape Town
    I think for small tank led could be considered.
    I did look into converting to led at some point but with a large tank it wasn't worth the hassle.

    Also I am not convinced that led could compete with my light unit.
    It's a monster and love the look of the tank fully lit. I don't believe anything could compare to MH intensity
     
  12. NO3

    NO3

    Joined:
    26 Jul 2013
    Posts:
    592
    Likes Received:
    30
    Location:
    Durban,Hillcrest
    I think that's the important thing to remember, you get led and you get LED cant buy a sanyong and expect it to be as reliable or perform as well as a Toyota

    I have the Pacific sun unit SMT 450 watt 3 panel, i have designed my par table to run at 75-85 percent per channel and then put the total lamp output to 60%. I put it to 85 % initially and burnt some of the brains i had. The SMT panels have no white LED at all, just 9 channels

    I think Led allow for far better colors from the coral, and this is perfect as i love running my tank more on the blue side.
     
Recent Posts

Loading...
Similar Threads - Metal Halidea gone Forum Date
[wtd] metal halide Wanted 10 Aug 2016
Copper and other heavy metals VS Bacteria Advanced Topics 6 Jun 2016
Double Ended Quartz Metal Halide General Discussions and Advice 26 May 2016
[wtd] 250W Double ended Metal-Halide Wanted 20 May 2016
[wtd] metallic green star polyps Wanted 3 May 2016
[wtd] Single ended metal halide fixtures Wanted 15 Nov 2015
[wtd] Metal halide globes Wanted 12 Oct 2015