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  1. #1
    Senior Member Leafster's Avatar
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    Coralvue MH bulbs (ne1 using?)

    I changed my 250W 20k XM bulb out Jan. 1st of this year. It was replaced with a 250W 20k Coralvue and I'm not pleased so far. My corals just don't seem to being doing as well as before, the coraline algae is now covered with a layer of green algae, and there are signs of cyno now.

    Anyone use this bulb? What are your impressions?

    I have my old bulb and I wonder if I should stick that in and order another on...

    Leafy


  2. #2
    Senior Member ReefSalt's Avatar
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    I had a bad experience with the old Coralvue bulbs,after getting complaints from several members on RC they changed the bulb to a new version and I have not heard anything about it,but like alot of other people I would never chance it again.

    Why did you switch the XM 20k`s when they are so popular with good results?
    HTH

    ReefSalt

    Before you buy anything......Read and Research .
    _________________________

    Setup:
    265 gl SPS Reef. AquaScape Marco Rock 150lbs ( Upgrading to a 300gl Deep Dimension)
    Ecotech Radion Pro x 4 & Ecotech ReefLink
    Decante 75g
    Pompe de Remonte PCX55
    Reef Octopus SRO-5000SSS
    Reacteur Sulphur H&S Pour Nitrate
    2x Phosban 550

    Frag Tank:
    Perfect0 45 cube sur le system central
    Totoka LR 50lb
    Radion Gen2
    Vortech MP10W

  3. #3
    Senior Member
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    Mar 2004
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    204
    I switched to the 20K XMs at Christmas time , since then all my sps have grown at least 1/4 to 1/2 an inch . XMs are awesome, why would you have switched?
    ALL POSTS & REPLIES ARE IMO

    Hardware:
    180 gal. Reeftank 2hole drilled
    70gal long sump with fuge,
    EuroReef ES8-3 skimmer,
    Reeftek reactor, sms122 ph/CO2 controller,
    Mag 18 return closed loop return.
    Mag 24 return
    Icecap dual175 20k MH, 250 20k MH center, 2 actinic, 2 -actinic white VHOs
    Livestock:
    1 Pajama cardinal, Lawnmower blenny, Sohal tang , Regal tang, 10 Clams, Scooter blennie, Yellow wrasse, DESJARDIN TANG (SAIL FIN),2 percs

  4. #4
    Senior Member Leafster's Avatar
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    Good question! I have the old one in now and will order a new one tomorrow. Live and learn! Thanks for the info!

    Leafy
    Leafster

    Groceries or more reef supplies?
    What an easy decision...

  5. #5
    Senior Member
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    I started with coral views (2 x 250 @ 14 K .. I think that's what they were) and I was happy enough with the light at the time. I did in the end switch them out for 10 K Ventures because of firing issues with the coral views. I am much happier with the light the Venture bulbs deliver. they are said to be the same as 13 K PFOs
    Rob

  6. #6
    Senior Member percula99's Avatar
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    May 2003
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    I had three CoralVue 250 watt, 10000Ks, and bought them because they seemed to be all the rage on RC at the time. probably about 16-18 months ago now. I eventually took them out because I found the tank dull and lifeless under them. No shimmer at all and very dull looking. I had heard people saying that their corals turned all kinds of insane colours under them, but mine never coloured up. I wouldn't touch them again.

  7. #7
    Senior Member Leafster's Avatar
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    It's been a week with the XM bulb back in. The difference is very noticable. The corals are extended more and the colors are starting to return. My Green Acro is green again... not brown.
    Leafster

    Groceries or more reef supplies?
    What an easy decision...

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