Go Back   Aquarium Advice - Aquarium Forum Community > General Aquarium Forums > General Hardware/Equipment Discussion
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 05-21-2009, 11:06 PM   #1
Aquarium Advice Apprentice
 
Join Date: Apr 2009
Posts: 28
Lights

Hi, I have a 600l reef tabk with a set of Aqua One MG1200 light, 2 x 150W 10,000 Kelvin Metal Halide lamps and 4 x 24W blue PL lamps and I was wondering how long should the white and blue lights stay on for and how far from the top of the water they should be?
__________________

__________________
Ben Jarrett is offline   Reply With Quote
Old 05-22-2009, 12:43 AM   #2
AA Team Emeritus
 
ryshark's Avatar

POTM Champion
 
Join Date: Jul 2007
Location: Southern California
Posts: 1,649
The "white" lights/halides should be on for 6-9 hours a day. You can use the "blue lights to turn on an hour before the halides and turn them off an hour after the halides to create a dusk/dawn feature. Plus it is pretty cool to have two different colors for the tank at different times. I keep my halides on for only 6-hours a day and my actinics for 8-hours and this seems to work fine for me.
The halides should generally be 8"-12" off the surface of the water. A lot of this depends on your reflector. Just don't put them too close because they get very hot.
__________________

__________________
ryshark is offline   Reply With Quote
Old 05-22-2009, 02:26 AM   #3
Aquarium Advice Apprentice
 
Join Date: Apr 2009
Posts: 28
Thanks very much, I just have a little algae problem. I will see how I go.
__________________
Ben Jarrett is offline   Reply With Quote
Old 05-22-2009, 02:40 AM   #4
AA Team Emeritus
 
ryshark's Avatar

POTM Champion
 
Join Date: Jul 2007
Location: Southern California
Posts: 1,649
If you have an algae problem then definitely use the lowest photo period time. Also check your RODI water and think about running a phospate reactor.
__________________
ryshark is offline   Reply With Quote
Old 05-22-2009, 02:57 AM   #5
Aquarium Advice Apprentice
 
Join Date: Apr 2009
Posts: 28
Hey Thanks I am running a phospate reactor in the sump and all levels are good. I checked my light times they are 13 hours for the halides and 10 hours for the blue lights and the light is about 13 inchs from the water.

I will change the light times and see how I go
Thanks again
__________________
Ben Jarrett is offline   Reply With Quote
Old 05-22-2009, 03:38 AM   #6
AA Team Emeritus
 
ryshark's Avatar

POTM Champion
 
Join Date: Jul 2007
Location: Southern California
Posts: 1,649
Quote:
Originally Posted by Ben Jarrett View Post
Hey Thanks I am running a phospate reactor in the sump and all levels are good. I checked my light times they are 13 hours for the halides and 10 hours for the blue lights and the light is about 13 inchs from the water.

I will change the light times and see how I go
Thanks again
Yeah, cut the halide time in half. The coral doesn't need 13-hours and the algae love it.
__________________
ryshark is offline   Reply With Quote
Old 05-22-2009, 03:47 AM   #7
Aquarium Advice Apprentice
 
Join Date: Apr 2009
Posts: 28
Sorry the blue are on for 13 hours and the whites for 10 hours.

I have set them to 8 hours for the white and 10 hours for the blue

Sorry
__________________
Ben Jarrett is offline   Reply With Quote
Old 05-22-2009, 03:58 AM   #8
AA Team Emeritus
 
ryshark's Avatar

POTM Champion
 
Join Date: Jul 2007
Location: Southern California
Posts: 1,649
one other thing I forgot to mention is how old are the halides? Old bulbs can cause algae issues too.
__________________
ryshark is offline   Reply With Quote
Old 05-22-2009, 04:05 AM   #9
Aquarium Advice Apprentice
 
Join Date: Apr 2009
Posts: 28
About 12 months, the whole tank is only 12 months
__________________
Ben Jarrett is offline   Reply With Quote
Old 05-22-2009, 04:57 AM   #10
Aquarium Advice Addict
 
thincat's Avatar
 
Join Date: Nov 2008
Posts: 5,330
At 10hrs a day, your Halides may be due for a change. They start to lose intensity after 10 months or so. That may be the reason for your algae bloom.
TC
__________________

__________________
thincat is offline   Reply With Quote
Reply

Tags
light, lights

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
new lights are wrong lights.. help please rngrjt Saltwater & Reef - Getting Started 10 06-10-2006 12:59 AM
Nicest PC lights? PC lights to stay away from? runway1 Saltwater Reef Aquaria 13 01-29-2005 10:50 AM
Lights, oh the wonderful lights. SerLunchbox Canada 19 12-24-2004 05:40 PM
shop lights instead of pc lights? bolohead Saltwater Reef Aquaria 8 06-10-2004 06:43 PM
lights? evenings Saltwater Reef Aquaria 7 05-16-2004 05:51 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 11:20 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.