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Mixed Reef Lighting 2/19/13 <Hello Chris> I really dread asking this question as I'm sure it's somewhere in the archives, but I have had no luck so far with my search. I have a mixed reef (mostly lps, but working towards more sps) and have gone through a variety of lights (went from 150 mh with pc''s to LED's and have finally settled with a 72" Coralife 250w mh fixture with 4 96 w pc. The fixture that I recently purchased was used and am looking to change upgrade the bulbs starting with the PC. Right now it has 2 x 50/50 bulbs side by side in the back and 2 actinics in the front. Question's are: should maintain this configuration or should I go to straight 10,000 pc in the back and should I change from a Coralife bulb or is there way better. Again, my apologies if this is already posted. <Chris, I would like to know your tank size (dimensions) and how many metal halide lamps are in the Coralife fixture. James (Salty Dog)> Chris Re Mixed Reef Lighting 2/20/13 James <Chris> I'm looking at the Coralife website and I have 4 choices on 96W CF Bulbs. 10k, 50/50, 6700 k and Actinic. I know I need the Actinics. I just need your thoughts on the 50/50 or if I should go just straight bright and would either way be more beneficial to my corals? Again, thanks for your input... <I don't understand this, I gave you my suggestion in the last email....UVL PC Lamps, 14K. I did not mention anything about Coralife Lamps. James (Salty Dog)> Chris Re Mixed Reef Lighting 2/19/13 Hi James <Hi Chris, see my comments within the original text.> Tanks is a 155 Gallon Bowfront (6 feet long) The light has 3 x 250 w mh Thanks again Chris Morning crew <Hello Chris> I really dread asking this question as I'm sure it's somewhere in the archives, but I have had no luck so far with my search. I have a mixed reef (mostly lps, but working towards more sps) and have gone through a variety of lights (went from 150 mh with pc''s to LED's and have finally settled with a 72" Coralife 250w mh fixture with 4 96 w pc. The fixture that I recently purchased was used and am looking to change upgrade the bulbs starting with the PC. Right now it has 2 x 50/50 bulbs side by side in the back and 2 actinics in the front. Question's are: should maintain this configuration or should I go to straight 10,000 pc in the back and should I change from a Coralife bulb or is there way better. <The 10K's will likely give a slight yellowish look. I would go with an 460nm actinic and UVL 14K's, one each in front and back.> Again, my apologies if this is already posted. <Chris, I would like to know your tank size (dimensions) and how many metal halide lamps are in the Coralife fixture. James (Salty Dog)> Chris Re Mixed Reef Lighting 2/20/13 Sorry about that...I wasn't familiar with UVL...I thought it was an acronym for a type, not a model. <No problem Chris. UVL is a company that have been producing lamps for the aquarium trade for many, many years. Take a look here. http://uvlco.com/ James (Salty Dog)> rgds Chris PC light replacement 9/5/12 It is that time of year again where I get to change out my lights. I have been browsing on Marine Depot and found the 65 watt light, but it comes in several variations I am unfamiliar with. I have been using 10k lights. I need 8 total. They have a 12k and 6700, should I even consider these for the tanks? I keep LPS corals in my 55 reef tanks. Should I look at maybe 4 10k and 4 12k? Would there be any benefit to something like this? Thanks. Bryce <For functions' sake I'd go w/ mostly the 6,700 K lamps... for looks you might mix in a few of the 10K. BobF> Actinic PCs'¦Do I Need Them? --
03/30/10 Re: Actinic PCs'¦Do I Need Them? --
03/30/10 Filter Question... Tidepool/Marineland Wet-Dry wheels,
skimmer sel., CF lamp sel. 3/13/10 Specifications on Power Compact Lamps Power Compact Lighting Questions/Reef Lighting 1/12/09 Good morning! <Hello Jim> I'm trying to understand the long term lighting needs for my 2 year old, 90 gallon reek tank. I've searched this site and others. I've recently re-read Mr. Fenner's article entitled "Marine Lighting: Quality, Quantity & Duration." I believe I now understand the methodology required to figure out what I want for my system. I'm having a hard time finding complete information on individual Power Compact lamp bulbs however. Most list degrees Kelvin, and wattage (which I assume to be power consumption, not output.) I'd like to compare CRI <Note that the CRI by itself does not indicate what the color temperature of the reference light source is. CRI is the ability of the lamp to display accurate colors.> and Lumens as well, but haven't found this information on most manufacture's sites. I currently have 4x65w, 21" "50/50" Coralife lamps. I haven't been able to figure out what I really have now. <What you have now are lamps with a mix of 6500K and actinic blue which is generally 460nm.> Are you aware of a resource that has made a comparison of various brands of these lamps? I'd sure appreciate a referral. <Am not, but you should be able to get this info by emailing the company directly. Reading here may help you better understand your reef lighting needs. http://www.wetwebmedia.com/marlgtganthony.htm James (Salty Dog)> Regards, Jim Lambeth Seattle Changing PC bulbs 8/27/08 Dear crew -- <Hello> We have a 55-gal FWLR salt-water tank. We do have a couple of corals that came with our live rock (the SPS seems to have survived, mostly). <Great!> We have 2x 65W Actinic + 2x 65W 10000k Daylight fluorescent lights on the tank. It's been six months since the last light change, so we are swapping lights. We realized that it would be better to swap two every three months instead of all four every six. <Six months is more than fine, still very conservative.> So we're swapping one actinic and one daylight today. Ok, all of that was to ask this simple question. Which is more important to an SPS coral, the actinic or the daylight? <The daylight, actinic is aesthetic, the daylight actually provides all the blue the corals actually need.> Since we're only going to be replacing one of them above the SPS, which one should we replace above the SPS, and which one should we replace on the other side? <Either or, you are still well within the need to change these bulbs; mine are done every ten months or so (still conservative in my estimation).> Thanks Dave and Laura <Welcome, Scott V.> Odyssea Lights 7/3/08 Hello! <Whit> I was wondering if Odyssea power compact bulbs are any good. <Sure, they are fine.> I know in the past they have been less than reputable, but am wondering if that had changed. <I still read things about the fixtures, but never the bulbs. I have never seen the firsthand failure of either from this company.> Also, in a 46 bow with Frogspawn, Zoos, Kenya Trees, Mushrooms, and Button Polyps, what combination of lights would you recommend? I can fit three bulbs, any thoughts (how many 50/50's, etc). <Perhaps one 50/50 up to one full actinic with the balance daylight. This is covered to death on WWM, eighteen pages re marine lighting to date, start here: http://www.wetwebmedia.com/marine/setup/lighting/faqs1.htm > Thanks again for your time! Whit <Welcome, have fun, Scott V.> Too Blue? Hey guys, <Scott F. your guy today!> Got a lighting question. I have a 65 gallon tank with LPS and soft corals. I have 3 96 watt pc's, 1-actinic, 1-10000k, and I was wondering what the third should be... 6700k? 7100k?20000k? Thanks, Justin Barstows <Well, Justin...it all depends on the specific species you intend to keep, as well as your aesthetic preferences! Even amongst the various LPS and soft corals we keep, light requirements (both spectrum and intensity) are highly variable. I, personally favor another actinic-but a lot of people find that "too blue", regardless of what the corals like! If that's your feeling, too, then I'd go with another 10,000K...Either should work fine. Your call here! Good luck! Regards, Scott F.> |
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