Results 1 to 4 of 4
  1. #1
    Senior Member
    Join Date
    Jan 2004

    Changing lighting?

    I was thinking about changing my halides from 175 to 400w. How would I go about doing this? Do I just start them up for a coule of hours a day for a while and gradually increase the time? And do I have to put my corals at the bottom of the tank, and then bring them back up over time? Thank

  2. #2
    Senior Member
    Join Date
    Jan 2004
    The easiest way that I have read about is to put several layers of window screen (fiberglass) over the top of your tank. Each week remove one layer.


  3. #3
    Senior Member
    Join Date
    Aug 2003
    Although I have never personally used the way Vickie described, I have read that many people have used it with good results. Ijust wanted to add though, make sure you have decent spacing from the lights to the screen. With 400 watters, you don't want that screen melting, catching fire or anything!!!

  4. #4
    Senior Member reefmutt's Avatar
    Join Date
    Oct 2003
    You could just start at one hour a day for a week and go up an hour each week. These babies create some serious heat, be prepared to deal with heat issues in the tank AND in the canopy- make sure they are not too close to wood- if that applies to your set up

    Old system torn down to make a playroom.. planning a 62x42x28 high

Similar Threads

  1. Changing lighting period for Time-of-Use pricing?
    By emahoney in forum Off Topic
    Replies: 1
    Last Post: 11-21-2009, 08:18 PM
  2. changing to 180G
    By i2ik in forum Large Tank Forum
    Replies: 143
    Last Post: 08-29-2006, 04:45 AM
  3. changing tanks ???
    By wayn496 in forum Reef Discussion
    Replies: 13
    Last Post: 02-05-2006, 03:14 PM
  4. changing endcaps
    By aquamann in forum Lighting, Filtration & Other Equipment
    Replies: 0
    Last Post: 04-15-2004, 09:26 PM
  5. Changing from CC to Sand
    By Hendu in forum Reef Discussion
    Replies: 3
    Last Post: 02-21-2004, 01:29 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts