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Changing from 10k to 20k |
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Changing from 10k to 20k |
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09-22-2007, 11:32 AM
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#1 |
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Citizen
Join Date: Oct 2001
Posts: 103
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Changing from 10k to 20k
I started my reef tank 2 years ago with 14k Hamilton bulbs. After a year I thought I would try 10k XMs, but I don't like the look. Can I change from 10k to 20k without affecting the corals and tank?
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125 Acrylic Tank 48x24x24 Approx 35 gal Sump/Refugium Refugium has 24/7 light with 55watt PC 2x 400w MH 20k lights running 10hrs/day 2x 110w VHO Super Actinics running 12hrs/day Phosphate Reactor Calcium Reactor Kalk drip with top-off Closed loop Sequence Dart Pump 12hrs/day Mag 7 Circulation pump 24/7 Kent salt 10 gal water change bi-weekly Temp ranges: 78 - 85 Nitrate/Nitrite/Ammon: 0 PH: 7.8 P04: 0 Ca: 480 dkh: 11 Mag: 1350 |
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09-22-2007, 10:39 PM
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#2 |
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Keeper of Willis
Join Date: Jul 2004
Location: NW Montana
Posts: 5,715
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Re: Changing from 10k to 20k
I do believe you will still have to acclimate your critters. Either cut back on your photoperiod, a couple hours on each side, or get some window screening and take a layer off every week. I would think you would want to acclimate for 2-3 weeks at the least just to make sure. HTH
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09-22-2007, 11:45 PM
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#3 |
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Sponsor
Join Date: Aug 2007
Location: Jefferson City, MO
Posts: 104
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Re: Changing from 10k to 20k
Since your PAR will be going DOWN....you will be OK without acclimating to the new light...it is lower intensity.
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09-23-2007, 12:01 AM
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#4 | |
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Keeper of Willis
Join Date: Jul 2004
Location: NW Montana
Posts: 5,715
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Re: Changing from 10k to 20k
Quote:
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09-23-2007, 12:21 AM
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#5 |
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Citizen
Join Date: Oct 2001
Posts: 103
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Re: Changing from 10k to 20k
Thanks for the input. I look forward to more!
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125 Acrylic Tank 48x24x24 Approx 35 gal Sump/Refugium Refugium has 24/7 light with 55watt PC 2x 400w MH 20k lights running 10hrs/day 2x 110w VHO Super Actinics running 12hrs/day Phosphate Reactor Calcium Reactor Kalk drip with top-off Closed loop Sequence Dart Pump 12hrs/day Mag 7 Circulation pump 24/7 Kent salt 10 gal water change bi-weekly Temp ranges: 78 - 85 Nitrate/Nitrite/Ammon: 0 PH: 7.8 P04: 0 Ca: 480 dkh: 11 Mag: 1350 |
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09-23-2007, 03:24 AM
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#6 |
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Sponsor
Join Date: Aug 2007
Location: Jefferson City, MO
Posts: 104
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Re: Changing from 10k to 20k
Check the difference in PAR it is 127 with the 250 XM 10K SE on a M58 ballast and 72 with a 20K. The PAR could not degrade that much in an entire year. The specturm and color may shift a bit. Check yourself.
Select from Performance Data |
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09-23-2007, 11:13 AM
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#7 |
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Keeper of Willis
Join Date: Jul 2004
Location: NW Montana
Posts: 5,715
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Re: Changing from 10k to 20k
I am going to point you towards post #5 in this thread:
To Whom It May Concern... I don't think you can be to careful!!!!!!!!!!!!!!!!!!!!!!!!!! |
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09-23-2007, 01:07 PM
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#8 |
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Citizen
Join Date: Oct 2001
Posts: 103
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Re: Changing from 10k to 20k
Holy cow, guess I'd better be carefull!
__________________
125 Acrylic Tank 48x24x24 Approx 35 gal Sump/Refugium Refugium has 24/7 light with 55watt PC 2x 400w MH 20k lights running 10hrs/day 2x 110w VHO Super Actinics running 12hrs/day Phosphate Reactor Calcium Reactor Kalk drip with top-off Closed loop Sequence Dart Pump 12hrs/day Mag 7 Circulation pump 24/7 Kent salt 10 gal water change bi-weekly Temp ranges: 78 - 85 Nitrate/Nitrite/Ammon: 0 PH: 7.8 P04: 0 Ca: 480 dkh: 11 Mag: 1350 |
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09-23-2007, 02:18 PM
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#9 |
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Sponsor
Join Date: Aug 2007
Location: Jefferson City, MO
Posts: 104
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Re: Changing from 10k to 20k
If you were going from 20K to 10K, I could not agree more...going the other way is not a problem.
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