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01/30/2010, 03:02 PM
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#1 |
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Registered Member
Join Date: Mar 2006
Location: Western Ma
Posts: 822
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MH bulbs how long do they last
I have a question about MH bulbs. How long do the bulbs last. I keep my lights on 8 hrs a day. Also I had my bulbs since nov 08. So about a 1yr and 3 months. I notice I have gotten alot of brown algea over the last few months. Do they need to be changed???
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01/30/2010, 03:46 PM
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#2 |
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Team RC Member
 
Join Date: Oct 1999
Location: Alta Loma, Ca
Posts: 6,776
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depends on the bulb and ballast...I'd say 15 months is too long for any MH.
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grow em, frag em, trade em... Current Tank Info: TOTM curse |
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01/30/2010, 03:47 PM
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#3 |
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RC Mod
 
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I let mine go 6-8 months.
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Sk8r Salinity 1.024-6; alkalinity 8.3-9.3 on KH scale; calcium 420; magnesium 1300, temp 78-80, nitrate .2. Ammonia 0. No filters: lps tank. Alk and cal won't rise if mg is low. Current Tank Info: 105g AquaVim wedge, yellow tang, sailfin blenny,royal gramma, ocellaris clown pair, yellow watchman, 100 microceriths, 25 tiny hermits, a 4" conch, 1" nassarius, recovering from 2 year hiatus with daily water change of 10%. |
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01/30/2010, 04:24 PM
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#4 |
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Registered Member
Join Date: Mar 2006
Location: Western Ma
Posts: 822
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I just ordered new ones today. I should have them next week. Im getting ready to upgrade to a 90g. So it will be good to start with new bulbs
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01/30/2010, 04:25 PM
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#5 |
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SCRK member
Join Date: Dec 2009
Location: Huntington beach ca
Posts: 3,071
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I only use my bulbs for 6 to 9 months at the longest
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*SCRK member* 2x2x1 rimless diamond edge starfire prop tank 24 tall 24 deep 32 long Wanting to get my new tank and new LEDs going |
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01/30/2010, 04:33 PM
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#6 |
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Registered Member
Join Date: Mar 2009
Location: 45 mins from Chicago
Posts: 2,009
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I go 12 months on 250s. If I had 400s I would probably change them after 8 months.
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A wise man once said "Never play leap frog with a unicorn" Current Tank Info: 150 gallon glass with 20 gallon sump, 175lbs of coraline covered live rock, EuroReef skimmer rated for 250gal, 25watt Aqua UV sterilizer, Fluval FX5, Hamilton 3x250watt MH, 160 watt Blue actinic....Mixed reef |
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01/30/2010, 04:43 PM
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#7 |
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Registered Member
Join Date: Nov 2009
Location: ridgecrest ca
Posts: 123
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i had mine for about 8 months at a time.
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01/30/2010, 05:21 PM
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#8 |
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Premium Member
 
Join Date: Feb 2009
Location: NJ, shore
Posts: 4,376
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I go 10-12 months.
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Matt, 65G reef tank Current Tank Info: 65g reef, mix of sps, lps, few softies. Hoping to upgrade within the year. |
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01/30/2010, 06:11 PM
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#9 | |
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Registered Member
Join Date: Jan 2010
Location: Tucson
Posts: 240
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Quote:
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01/30/2010, 06:17 PM
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#10 |
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Registered Member
Join Date: Jun 2009
Location: Mount Washington, KY
Posts: 360
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How long is everyong running there MH's? My VHO's are my main lights and my MH's are just going to be run 4-6 hours a day.
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Having fun so far! Current Tank Info: 180 Reef Ready in the works.. |
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01/30/2010, 06:18 PM
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#11 |
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Registered Member
Join Date: Aug 2005
Location: Annapolis, MD
Posts: 302
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I change my 400w Monguls out every 6 months
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Philip There are two types of people in this hobby: "The ones who have had a tank crash, and the ones that are going to have a tank crash" Current Tank Info: 11gal Nano Reef |
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01/30/2010, 06:20 PM
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#12 |
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Registered Member
Join Date: Nov 2004
Location: Sacramento, CA
Posts: 6,258
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~Doug |
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