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Metal Halide lights?

Discussion in 'Buy/Sell/Trade' started by coral_bandit, Nov 16, 2009.

  1. coral_bandit

    coral_bandit Inactive User

    192
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    Looking for an upgrade for my lighting. Anyone going to get rid of 48" mh? What would be consided HIGH lighting, MODERATE, and LOW? I'm wanting to be able to keep acropora. Would a 4x54watt t-5ho fixture work? or a 6x54watt fixture work?
    Looking for something like this if anyone has one lying around
    [​IMG]
     
  2. xroads Veteran Reefkeeper Vendor

    La Porte City, IA
    Ratings:
    +1,014 / 6 / -0
    I cant remember what tank you have but you would be better off buying a really good reflector, mogul socket, & ballast. 250 or 400 should be good
     
  3. coral_bandit

    coral_bandit Inactive User

    192
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    55g, I'm probably getting german polished reflectors, whats the difference between hqi and mogul, other than type of bulb plug in. what kind of ballast do you recommend. I'm goint gor 2x250 or 2x150 watt mh's and 4 t-5's and lunar lights
     
  4. Bela

    Bela Inactive User

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    HQI is double ended mogul is single ended. As far as I know, there really is no other difference. In some cases I have read that getting two of the same kelvin temperature rated bulbs from the same manufacturer, one being mogul and one being HQI that they don't actually give off the same visible light (ie one may be bluer or whiter than the other). I have heard that HQI is more efficient, although I have heard the other way around too.
     
  5. tgauger

    tgauger Inactive User

    69
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    not to mention with HQI bulbs, you need to run a seperate UV filter/shield on them...
     
  6. JohnL

    JohnL Well-Known ReefKeeper

    308
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    Do you have a chiller? Sump?
    If you go with 250w or higher Mh your likely to have heating issues on a 55.
    You might get away with it if you ran 175w or even 150w with fans.
     
  7. tgauger

    tgauger Inactive User

    69
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    good point John... I have 2 175w halides without fans on my 55 with no heat issues. I am sure the sump helps with that though. Any bigger on the halides and I am sure fans at least would be needed
     
  8. coral_bandit

    coral_bandit Inactive User

    192
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    •2x External 250W Electronic HQI Metal Halide Ballast with Power Switch
    •Internal T5 High Output Ballasts
    •5x Power Cord (Ideal for Separate Timer Setup)
    •3x Power Switch on Fixture (1 - T5 HO, 1 - LEDs, 1 - Cooling Fan)
    •Non-Corrosive Powder Coated Aluminum Housing
    •Heavy Duty Cooling Fan
    •Tempered Glass and Clear Acrylic Lens Covers
    •Highly Polished Reflector
    •Mounting Legs Included
     
  9. tgauger

    tgauger Inactive User

    69
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    One other thing you might want to look at is the depth of that fixture, it says it is 18" front to back. You would probably have to hang it over a 55 plus you might not get a lot of light from the t5 bulbs into the tank because they will overhang the front or back or maybe both...
     
  10. matt the fiddler

    matt the fiddler Inactive User

    329
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    +1 / 0 / -0
    i would go a 250 halide. really anything less in the halide range is going to not get good growth/ color/ health at any place but the very top of the tank.
    T5s are nice, but hotter than most people admit- the heat is just mroe diffused across a 4' bulb rather than a 8" bulb,....


    I like the Single Ended mogul halides.. I am a bit old school though :)

    FWIW in the past i have run sucessfully without a chiller...
    - a 55 gallon with a 400 watt AND a 250 watt halide (hard to do w/o chiller) both were not on at the same time...
    - a 25 gallon with a 250 halide (air flow is the key)
     
  11. AJ

    AJ Inactive User

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    Anna had some great reflectors and ballasts for sale...$360 (at least that's what I remember...I could be wrong on the price) for two reflectors, mogul sockets, and ballasts. Look for her post...good deal!

    --AJ
     
  12. coral_bandit

    coral_bandit Inactive User

    192
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    measuring tank right now for specs
     
  13. coral_bandit

    coral_bandit Inactive User

    192
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    5 inch overhang
     
  14. coral_bandit

    coral_bandit Inactive User

    192
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    the one I'm buying is
    Fixture Size: 47.50 x 15 x 3
    With Mounting Legs Installed: 48 x 15 x 6.50
    Here's a link to it. Any thoughts?
    http://shop.aquatraders.com/Odyssea-48in-Metal-Halide-System-with-T5-HO-p/54231.htm
    Also about the heating.... let's just say my room is just a giant chiller. It's around 60-65 on average and tank's at 75-76
    Would that help any with the heating?
    With the legs holding it up and the fans, my room would actually be warm lol!
     
  15. tgauger

    tgauger Inactive User

    69
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    i do know that odyssea used to have a bad reputation about their ballasts, something about catching fire... BUT, I am pretty sure that was a while back and those particular issues have been addressed (no way they could stay in business if they werent)

    That being said i do own a odyssea pc fixture that i had absolutely no problems with the fixture itself, however the bulbs it came with were sorely lacking... I ended up replacing all the bulbs in the fixture within the first month from a combination of crappy color and outright bulb failure...

    15" is still going to give you almost 3" of overhang if you look at the actual opening of trim/brace... is that going to be enough that the t5 bulbs illuminate something other than the trim and floor? I didnt see any pics of the fixture to know how recessed they are, but that would be a concern for me...

    just my .02...
     
  16. adampottebaum

    adampottebaum Experienced Reefkeeper GIRS Member

    Ratings:
    +18 / 0 / -0
    I've read some posts on Reef Central talking about their drastic improvements on their lights now. They seemed to address all the concerns with peoples lights getting too hot and starting on fire. Someone even tested the par on their bulbs and they weren't too bad. With that said, I would still beef it up with some new computer fans to keep it cool and buy new bulbs for reassurance.
     
  17. billbigsbe Well-Known ReefKeeper

    695
    Clive
    Ratings:
    +1 / 0 / -0
    I hate to be the voice of reason here, a 55 gallon for a sps tank? I will probably get some crap on this but here goes!A 55 g is the #2 worst tank behind a 46 bowfront(which was my first tank!) for sps. This being the dimmensions make for poor gas exchange at the surface. Simply put there isnt enough surface area to properly diffuse gasses for 55g worth of water and livestock. Remember reeftanks expecially SPS tanks work best if they are low and wide. I would suggest a 40 or 50 breeder they also make a awsome 70 cube! Either way if you decide to put SPS in a 55 be ready to have a lot of heartaches and exercise your water change muscle! Seriously my vote is for a 40 drilled breeder w/a se 250 in a small Lumenbrite reflector. If your keeping your 55 i vote for T5s and good beginner SPS like montipora or piccolipora, definately not acropora. Remember its just my 2 cents...

    Dave
     
  18. matt the fiddler

    matt the fiddler Inactive User

    329
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    bil has good things to say.. i would only do limited acros IF you can keep montis thriving.


    I have always kept sumps, and think really anyone with a 55 should consider
     
  19. coral_bandit

    coral_bandit Inactive User

    192
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    how many t-5s would I need then?
     
  20. billbigsbe Well-Known ReefKeeper

    695
    Clive
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    Mabe look for Brandon (gb387) he has had great results with T5 lighting. Is your 55 drilled w/sump coralbandit? If you wanna run any demanding SPS you need to look into at least a sump. www.diyreef.com is closing. :-(. they have a 24" Octopus Sump w/filter sock for $100 thats $50+ off. But remember this will only help your situation, not eliminate it...

    or save your $ on the sump and get a huge stock tank as a sump,this is your best bet!

    ps try purchasing a small frag of Montipora Digita, place it up high. See if you can keep it alive with the water quality your tank has now. If it dies out fast then you have bad parameters. I have seen massive ammounts of Digita grown under Compact Flouresents. Water quality comes way before lighting intensity...
     

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