+ Reply to Thread
Results 1 to 5 of 5

Thread: Acrylic warp behind t-5s?

  1. #1

    Acrylic warp behind t-5s?

    When you place a t-5 behind acrylic, does the acrylic warp?

    I'm considering building an acrylic tank where the back chamber might act as a algae scrubber. Has that been done? is it not possible?

  2. #2
    Administrator
    Join Date
    Oct 2008
    Location
    Salt Lake City, Utah, USA
    Posts
    10,365

    Re: Acrylic warp behind t-5s?


  3. #3
    Banned
    Join Date
    Mar 2009
    Location
    UK
    Posts
    461

    Re: Acrylic warp behind t-5s?

    Quote Originally Posted by steve hwang
    When you place a t-5 behind acrylic, does the acrylic warp?
    Depends on how thick the acrylic is, I have a piece of 2mm acting as a splash guard in front of an array of cfl's and that has warped a little bit (not much), but anything used to build a tank should be ok I expect, given that it'll be thicker and braced along each edge by the other sides of the tank.

    Floyd R Turbo, on here, I think should be able to tell you better. I recall he has some expertise with acrylic.


    Quote Originally Posted by steve hwang
    I'm considering building an acrylic tank where the back chamber might act as a algae scrubber. Has that been done? is it not possible?

    Something along the lines of my sump based one then

    viewtopic.php?f=2&t=1376

    but kind of in reverse.

  4. #4
    Administrator
    Join Date
    Oct 2008
    Location
    Salt Lake City, Utah, USA
    Posts
    10,365

    Re: Acrylic warp behind t-5s?

    I've noticed that constant heat over a period of week will cause warping away from the heat.

  5. #5
    Banned
    Join Date
    Aug 2010
    Location
    USA
    Posts
    2,710

    Re: Acrylic warp behind t-5s?

    Acrylic has a relatively high water content when compared to Polycarbonate. Acrylic will absorb a certain amount of water and will tend to expand on the wet side. This is why the lids for acrylic tanks are typically thicker, or made of Poly - because they bow upwards. Of course if you make a tank it bows, it's because of water pressure. In my T5HO setup it must be the heat because the interior box (which does not have a cross-brace along the top edge) bowed significantly outward. Cross-bracing will prevent permanent bowing to a certain extent. There may still be bowing in the center of a large expanse of acrylic when T5HOs are placed close. A center cross-brace would not be unreasonable, if you're using modular fixtures (end caps and individual reflectors). If using a stock fixture, you would just do what you can to prevent the bowing.

+ Reply to Thread

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

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