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| View Poll Results: How long is your photoperiod? | |||
| 4 hours or less |
   
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1 | 0.62% |
| 5 hours |
  
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3 | 1.85% |
| 6 hours |
  
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19 | 11.73% |
| 7 hours |
  
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14 | 8.64% |
| 8 hours |
  
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22 | 13.58% |
| 9 hours |
  
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17 | 10.49% |
| 10 hours |
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26 | 16.05% |
| 11 hours |
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6 | 3.70% |
| 12 hours |
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39 | 24.07% |
| 13 hours |
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6 | 3.70% |
| 14 hours or more! |
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9 | 5.56% |
| Voters: 162. You may not vote on this poll | |||
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#1
04-17-2009, 06:28 AM
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How long is your photoperiod?
Curious what photoperiod length has been the most successful for your tank. Leaving out actinic lighting for sunrise/sunset effects. 'Daytime' lighting only.
There is so much more to it than just length of course so maybe add the following if you feel like it: 1. Tank Depth 2. Light type/wattage/height from water 3. Reflectors 4. What coral do you grow? 5. Do you run carbon or anything else to 'clear' the water? Last edited by GreenSpottedPuffer; 04-17-2009 at 06:36 AM. 
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#2
04-17-2009, 06:31 AM
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For me I went from 10 hours (I think, can't even remember) to 6 and have had great results. Much better coral color and growth.
1. 22" 2. Metal Halide/400 watts/18" off the water surface 3. Lumenbrights 4. Mixed...bit of everything 5. Carbon all the time Last edited by GreenSpottedPuffer; 04-17-2009 at 06:36 AM.
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#3
04-17-2009, 07:34 AM
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1. 21" substrate to water level
2. 12 39 WT, T-5's 4 1/4" off the water surface 3. individual 4. SPS 5. Carbon all the time, 1cup changed every 2 weeks
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#4
04-17-2009, 02:13 PM
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I also now run 6 hours, and have better results than I've ever had.
1. 18" depth 2. MH/400w aquaconnects/6 inches from surface 3. PFO 4. SPS 5. Carbon full time, 1 cup, changed monthly
__________________
Brad Last edited by Aquattro; 04-17-2009 at 02:16 PM.
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#5
04-17-2009, 02:26 PM
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I'm trying to cut it down by another hour from 6 to 5ish.
1. 24" 2. 250w MH about 12" off the surface 3. Luminarcs 4. SPS & Clams 5. Nope, I run nada!
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#6
04-17-2009, 02:33 PM
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1. 24"
2. MH 250W 6" off water 3. Lumenarc Mini A3 4. SPS dominant with some LPS 5. carbon in phosban reactor, 10% weekly waterchange, 100micron filter sock in sump
__________________
Christy's Reef Blog My 180 Build Every electronic component is shipped with smoke stored deep inside.... only a real genius can find a way to set it free.
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#7
04-17-2009, 08:56 PM
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1. Tank Depth
2. Light type/wattage/height from water 3. Reflectors 4. What coral do you grow? 5. Do you run carbon or anything else to 'clear' the water? 1. 24" 2. DE MH/250W/6" 3. Lumenmax 3 4. LPS & SPS 5. 1 cup carbon changed monthly
__________________
"We shall dive down through black abysses... and in that lair of the Deep Ones we shall dwell amidst wonder and glory forever." - H.P. Lovecraft Old 120gal Tank Journal New 225gal Tank Journal May 2010 TOTM The 10th Annual Prince George Reef Tank Tour
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#8
04-17-2009, 10:50 PM
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1. 24"
2. 14k 250W HQI @ 7" 3. 3x PFO mini on 5' tank 4. SPS 5. Carbon in sock and Ozone
__________________
Denis 150g SPS reef;3x250WHQI,Tunze Streams,Wavebox,Neptune Apex,fishroom in basement  ,reefing since 93,SPS since 99.TOTM June 2010
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#9
04-17-2009, 11:09 PM
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I don't have any supplemental lighting and I don't like looking at a dark tank so the lights are on for 10hrs. I have good colour and great growth.
1. 29" deep tank 2. 250w 10k xm's with hqi ballasts approx 12" off surface 3. lumenmax elite reflectors 4.sps 5. carbon changed ever 6 weeks or so If cutting back on the lighting period means increased growth maybe I'll keep the lights on for 15hrs instead 
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#10
04-18-2009, 03:36 AM
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1. Tank Depth
30" 2. Light type/wattage/height from water 20K radium 400W, 15" from water 3. Reflectors Spiders - def not the best 4. What coral do you grow? SPS, nem, goniopora 5. Do you run carbon or anything else to 'clear' the water? Negative
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