Reef Central Online Community
Tunze USA

Home Forum Here you can view your subscribed threads, work with private messages and edit your profile and preferences View New Posts View Today's Posts

Find other members Frequently Asked Questions Search Reefkeeping ...an online magazine for marine aquarists Support our sponsors and mention Reef Central

Go Back   Reef Central Online Community > General Interest Forums > Lighting, Filtration & Other Equipment
Register Blogs FAQ Calendar Mark Forums Read

Notices

Reply
Thread Tools
Old 08/17/2011, 11:04 PM   #1
aandfsoccr04
Registered Member
 
aandfsoccr04's Avatar
 
Join Date: Apr 2011
Location: Virginia Beach, VA
Posts: 3,572
10k vs 14k vs 20k

What is the difference between these different bulbs? Does anybody have an article they can link me to or something that I can read to learn about this. I am running a 20k XM single ended bulb right now. I'd love to see pictures of the different lights on the same tank. Thanks in advance.


__________________
120 gallon mixed reef
aandfsoccr04 is offline   Reply With Quote
Old 08/17/2011, 11:10 PM   #2
mistaflicksta
S.T.A.R.S Treasurer
 
mistaflicksta's Avatar
 
Join Date: Aug 2010
Location: El Paso, TX
Posts: 1,203
Basic rule of thumb is the lower the Kelvin, the faster things grow (including algae) the higher the Kelvin the better the coral colors up.


__________________
Erik G.

Below is the tank set up I used to own

Current Tank Info: 90 gallon mixed reef, 2X 120W LEDs, 40 gallon sump, NWB 150 reef octopus skimmer, 70lbs of live rock, 50lbs of Marco Rocks, 100 lbs of live sand, ATS, JBJ ATO, 2X Tunze 6055, Tunze nano wavebox
mistaflicksta is offline   Reply With Quote
Old 08/17/2011, 11:26 PM   #3
pmrossetti
Registered Member
 
pmrossetti's Avatar
 
Join Date: Oct 2008
Location: Cali.
Posts: 3,199
higher the k, the bluer the bulb.

http://www.marinedepot.com/lighting_...mation-ap.html


pmrossetti is online now   Reply With Quote
Old 08/17/2011, 11:26 PM   #4
chrischin29g
o^__^o<-- MY PLUGS
 
chrischin29g's Avatar
 
Join Date: Dec 2009
Location: In a hot valley
Posts: 979
Also lower the k more yellow the light higher the bluer


__________________
Only a fool learns from his own mistakes... a wise man learns from the mistakes of others

Current Tank Info: 15g nano.
chrischin29g is offline   Reply With Quote
Old 08/17/2011, 11:46 PM   #5
aandfsoccr04
Registered Member
 
aandfsoccr04's Avatar
 
Join Date: Apr 2011
Location: Virginia Beach, VA
Posts: 3,572
I'm curious in particular about the 14k hamiltons and phoenix. Also the 20k XM and radiums.


__________________
120 gallon mixed reef
aandfsoccr04 is offline   Reply With Quote
Old 08/17/2011, 11:50 PM   #6
pmrossetti
Registered Member
 
pmrossetti's Avatar
 
Join Date: Oct 2008
Location: Cali.
Posts: 3,199
the 14k hams are white with hint of blue.
the phoenix are very blue
xm 20k very blue
radiums very blue, hint of purple


pmrossetti is online now   Reply With Quote
Old 08/17/2011, 11:56 PM   #7
aandfsoccr04
Registered Member
 
aandfsoccr04's Avatar
 
Join Date: Apr 2011
Location: Virginia Beach, VA
Posts: 3,572
where could I find pictures with these comparisons on the same tank? Basically this is my first tank and I want to decide on what bulbs I like for my 120 gallon tank but don't want to have to purchase them all just to test them out...


__________________
120 gallon mixed reef
aandfsoccr04 is offline   Reply With Quote
Old 08/18/2011, 12:08 AM   #8
pmrossetti
Registered Member
 
pmrossetti's Avatar
 
Join Date: Oct 2008
Location: Cali.
Posts: 3,199
did u see the link?
thats the only one i know of.


pmrossetti is online now   Reply With Quote
Old 08/18/2011, 12:09 AM   #9
klepto
Registered Member
 
klepto's Avatar
 
Join Date: Jul 2008
Location: Monterey, California
Posts: 1,956
Quote:
Originally Posted by aandfsoccr04 View Post
where could I find pictures with these comparisons on the same tank?
You can find them on your thread.

Quote:
Originally Posted by pmrossetti View Post
Here's another..
http://www.marinedepot.com/lighting_...tion_2-ap.html


__________________
Everything you do can be done better from a place of relaxation.
Stephen C. Paul
klepto is offline   Reply With Quote
Old 08/18/2011, 12:17 AM   #10
brob22
Registered Member
 
Join Date: Mar 2011
Posts: 956
i think one of the best combos is the radiums on a hqi ballast. this is the ballast that the radium are meant to run on. the ballast will over drive the bulb and make them white with hints of blue.

check out mpollotis totm write up


brob22 is offline   Reply With Quote
Old 08/18/2011, 12:51 AM   #11
CyclistMT
More Idiot Than Savant
 
CyclistMT's Avatar
 
Join Date: Nov 2005
Location: Billings, MT
Posts: 524
Here's the best link I know of to give you what you're looking for. It's getting a bit dated as it doesn't contain any newer bulbs but it seems to hit some of the favorites.

http://cnidarianreef.com/G180/lamps.php


CyclistMT is offline   Reply With Quote
Old 08/18/2011, 12:52 AM   #12
ridetheducati
20 and Over Club
 
ridetheducati's Avatar
 
Join Date: Sep 2000
Location: Bowie, MD
Posts: 2,809
Radiums are by far the most popular and the performance cannot be matched. However, like anything in life, you must be aware of the drawbacks. More specifically, Radiums should be changed every 6-8 months.

Primary Goal:
Growth - 6,500K - 10,000K
Color - 14,000K - 20,000K

Generally when I run a SPS reef, I use Iwasaki (6,500K) or XM 10K to grow out the corals for 1-2 years and then switch to Radiums to color up the corals.


__________________
"Send more paramedics"

Current Tank Info: 300g DD, SPS dominated, Apex, Tunze 6125s, SRO 5000Ext, 400w MH, and Geo 618 Ca Reactor
ridetheducati is online now   Reply With Quote
Old 08/18/2011, 09:05 AM   #13
aandfsoccr04
Registered Member
 
aandfsoccr04's Avatar
 
Join Date: Apr 2011
Location: Virginia Beach, VA
Posts: 3,572
perfect! That was just what I was looking for. I guess I will get the hamilton's 14k and give those a shot compared to the 20k XMs. Is there anything I should know when switching from 20k bulbs to 14k?


__________________
120 gallon mixed reef
aandfsoccr04 is offline   Reply With Quote
Old 08/18/2011, 10:47 AM   #14
coralreefnc
Registered Member.
 
Join Date: Dec 2010
Location: NC
Posts: 107
Quote:
Originally Posted by aandfsoccr04 View Post
perfect! That was just what I was looking for. I guess I will get the hamilton's 14k and give those a shot compared to the 20k XMs. Is there anything I should know when switching from 20k bulbs to 14k?
The hamilton bulb has a great color but beware it will crap out on u in no time . Make sure to keep the reciept to send them back to HT when they shift . No too much of a switch to worry about .


coralreefnc is offline   Reply With Quote
Old 08/18/2011, 10:51 AM   #15
snorvich
Team RC member
 
snorvich's Avatar
 
Join Date: Aug 2005
Location: Flatlander
Posts: 33,893
Blog Entries: 41
Quote:
Originally Posted by mistaflicksta View Post
Basic rule of thumb is the lower the Kelvin, the faster things grow (including algae) the higher the Kelvin the better the coral colors up.
Sort of a crude but useful guide. For me 17K is the most pleasing to look at.


__________________
Warmest regards,
~Steve~
snorvich is offline   Reply With Quote
Old 08/18/2011, 10:52 AM   #16
snorvich
Team RC member
 
snorvich's Avatar
 
Join Date: Aug 2005
Location: Flatlander
Posts: 33,893
Blog Entries: 41
Quote:
Originally Posted by ridetheducati View Post
Radiums are by far the most popular and the performance cannot be matched. However, like anything in life, you must be aware of the drawbacks. More specifically, Radiums should be changed every 6-8 months.

Primary Goal:
Growth - 6,500K - 10,000K
Color - 14,000K - 20,000K

Generally when I run a SPS reef, I use Iwasaki (6,500K) or XM 10K to grow out the corals for 1-2 years and then switch to Radiums to color up the corals.
I totally agree or at least back when I was using MH.


__________________
Warmest regards,
~Steve~
snorvich is offline   Reply With Quote
Old 08/18/2011, 12:32 PM   #17
cloak
Registered Member
 
cloak's Avatar
 
Join Date: Jul 2000
Location: Stockton, CA
Posts: 11,037
Quote:
Originally Posted by coralreefnc View Post
The hamilton bulb has a great color but beware it will crap out on u in no time . Make sure to keep the reciept to send them back to HT when they shift . No too much of a switch to worry about .
This is the first time I've heard that. Can you elaborate a little bit more for me please? I've been using a Hamilton 14K bulb for almost 9 months now and haven't seemed to have any problems. It's a 175 watt SE being run on an older Hamilton magnetic ballast.


__________________
"The field mouse is fast, but the owl can see at night."

Current Tank Info: 20 gallon DT, 10 gallon sump, 175 watt Hamilton 20K bulb, two 24 watt T5 actinics, Eshopps PSK-75 skimmer, mixed reef
cloak is online now   Reply With Quote
Old 08/18/2011, 11:59 PM   #18
aandfsoccr04
Registered Member
 
aandfsoccr04's Avatar
 
Join Date: Apr 2011
Location: Virginia Beach, VA
Posts: 3,572
so what would I be needing to do in terms of acclimating them or switching from the 20k to the 14k?


__________________
120 gallon mixed reef
aandfsoccr04 is offline   Reply With Quote
Old 08/19/2011, 12:09 AM   #19
reefereef
Registered Member
 
Join Date: Jul 2011
Posts: 328
when i used to run MH i ran 400w SE radiums on HQI ballast. the HQI overdrives the bulb a bit and makes it less blue. I really loved the color and growth was really good. i ran a 400w 10K xm SE on a HQI ballast and the color wasnt horrible but growth wasnt THAT much better to make me want to run 10k over 20k. point being is that there wasnt a super noticeable growth difference but there was a color difference. I also ran pheonix 14k SE 250w and it had good color but i wouldnt trade it for the radium.


reefereef is offline   Reply With Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

Similar Threads
thread Thread Starter Forum Replies Last Post
14k or 20k jverna1 Lighting, Filtration & Other Equipment 7 02/24/2010 04:47 AM
10k vrs 14k or 20k rsantangelo3@co Reef Discussion 13 08/11/2009 11:33 PM
10k vs 14k vs 20k MH minesinger Lighting, Filtration & Other Equipment 3 01/16/2009 09:10 PM
10k, 12k, 14k, 15k, 20k lights porterdog New to the Hobby 2 12/02/2008 01:18 PM


All times are GMT -6. The time now is 07:20 PM.


TapaTalk Enabled

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Use of this web site is subject to the terms and conditions described in the user agreement.
Reef CentralTM Reef Central, LLC. Copyright 1999-2014