Go Back   Aquarium Advice - Aquarium Forum Community > General Aquarium Forums > DIY Projects
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 08-14-2008, 12:38 AM   #11
Aquarium Advice Addict
 
SpeedEuphoria's Avatar
 
Join Date: Jun 2008
Location: BCM
Posts: 1,225
Quote:
Originally Posted by BillD View Post
Ziggy's tank did not crack because it was on styrofoam.
I dont think so either, but I never saw a pic of what the foam looked like by itself especially after all the weight was on it then tank removed. I would have liked to see the impression from the tank on the foam.
__________________

__________________
10G,Planted- Endler's Livebearers+RCS, 55G,planted
Quote:
Originally Posted by Kurt_Nelson View Post
Understanding the basics will let you make informed decisions on what advice to follow, and what advice is just plain hooey!
SpeedEuphoria is offline   Reply With Quote
Old 08-14-2008, 12:57 AM   #12
Aquarium Advice Addict
 
Join Date: Aug 2006
Location: not here anymore
Posts: 5,338
There's no way anyone can say for sure what caused the tank to crack, even if you were there when it happened.

But with respect to the original poster's question - supporting a tank on the bottom glass and NOT on the frame or outside edges is a definite no-no.
__________________

__________________
Kurt_Nelson is offline   Reply With Quote
Old 08-14-2008, 10:59 AM   #13
vfc
Aquarium Advice Regular
 
Join Date: Jan 2007
Posts: 62
I believe Ziggy's tank cracked because the stand was not built properly and the styrofoam was not able to compensate enough. I have the same tank (150G H) on a DIY stand with 1/2 high-density foam under the tank running for a couple years now. My other two tanks (75G) have 1/2" exercise foam under them. The foam must be the proper density to redistribute the force if the stand is not 100% flat. To select the proper foam you need to calculate the force per inch of frame. Even with a 150G tank on a 48" frame, the lbs/inch of frame is only about 10lbs. I cut a piece of wood trim 1" x 1" and placed it on different foams. I then added weight to the wood that matched the calculated force and noted the foam compression. I selected foam that compressed about 20%. However, I believe the root cause of Ziggy's cracked tank was that his stand had no support under the center portion of the tank. The pictures show a 1x4" frame with only a single brace at the center. My stand has a 2x6" perimeter frame with another 2x6 across the center ( view from the top of the stand looking down [|] ). I also have two braces across the 48" center span ( front view [ | | ] ). The 150G H needs the 24" center plastic frame to support the load and prevent the bottom glass plate from deflecting too far down. Plus if any of the four corners are higher, or lower, than the other three, you have additional twisting stress. His new 120G may be okay without much center support, but the bottom is under stress.
__________________
vfc is offline   Reply With Quote
Old 08-14-2008, 01:04 PM   #14
Aquarium Advice Regular
 
Join Date: Jul 2008
Location: lemoore ca
Posts: 80
Quote:
Originally Posted by Kurt_Nelson View Post
Just to strongly reiterate what cccapt said...

Do NOT put anything under a glass tank that keeps the weight off the edges. Foam as you describe seriously runs the risk of breaking the tank. I have a 46g bowfront also, and the plastic rim sits directly on the top of the flat top stand. I leveled the stand itself between the floor and the stand.

i have had foam under my glass tanks for 10+ years. no issues!!!!
__________________
ThatGuy619 is offline   Reply With Quote
Old 08-14-2008, 01:15 PM   #15
SW 20 & Over Club
 
ccCapt's Avatar


 
Join Date: Mar 2004
Location: Northeast PA
Posts: 5,362
Send a message via ICQ to ccCapt
Good for all you that put foam under your tanks and they didn't crack. So then are you saying that even tho glass tank manufacturers say DO NOT USE FOAM, because your tank didn't break, it's OK to do?
So who's advice should be taken? The maunfacturer who makes and warranties the tank or those who used foam and the tanks didn't crack?
__________________
/Larry
125g reef
See My Tank Info
Check out The build project
ccCapt is offline   Reply With Quote
Old 08-14-2008, 01:37 PM   #16
Aquarium Advice Freak
 
cogburn's Avatar
 
Join Date: Feb 2008
Location: bangor, pa
Posts: 492
what if you get a perfecto tank and perfecto stand? any foam necessary?
__________________
180 gallon mbuna tank... 29 gallon community tank.
cogburn is offline   Reply With Quote
Old 08-14-2008, 01:56 PM   #17
Aquarium Advice Addict
 
SpeedEuphoria's Avatar
 
Join Date: Jun 2008
Location: BCM
Posts: 1,225
Quote:
Originally Posted by cogburn View Post
what if you get a perfecto tank and perfecto stand? any foam necessary?
No I wouldnt add or try foam if the stand is level and no gaps. However if the stand is a little off then maybe. On the foam I'm talking the high density pink stuff sold in sheets last I knew.
__________________
10G,Planted- Endler's Livebearers+RCS, 55G,planted
Quote:
Originally Posted by Kurt_Nelson View Post
Understanding the basics will let you make informed decisions on what advice to follow, and what advice is just plain hooey!
SpeedEuphoria is offline   Reply With Quote
Old 08-14-2008, 02:18 PM   #18
vfc
Aquarium Advice Regular
 
Join Date: Jan 2007
Posts: 62
It is just common sense to use foam under a tank. I assume you sleep on a mattress; that is the same principle as the mattress removes pressure points on your body. If the tank and stand are flat, and nothing changes over time, then it does no harm. However, any one of the six factors below causes tank stress that can be minimized or eliminated by placing foam under a tank: 1 - The four corners of the stand are not even (i.e., one corner is higher or lower than the other three). This is very difficult to check. 2 - The tank stand does not provide adequate support around the outside perimeter and center of the tank. 3 - The stand is made from wood and any part of the stand compresses or sags over time (very common with particle board stands). 4 - The stand has a sharp high point from a nail or knot in the wood that puts pressure on one spot in the tank's bottom frame. 5 - The floor that the tank sits on is wood and it sags unevenly over time. This is very common and often unnoticed as it takes months for the wooden floor joists to start to bend under constant pressure. Seasonal changes in humidity levels also causes wood floors to shift. 6 - An uneven concrete floor will cause a wooden stand to slowly bend and sag over time. So you have a choice: - use foam as an insurance policy and lessen the chance of a tank failure along with the loss of all your fish (tank manufacturers are not responsible for fish loss). I can't recall anyone on this, or other fish forums, mentioning a manufacturer's refusal to replace a tank that had foam under it unless the foam was not under the frame and pushing up on the glass. - or don't use foam, experience one or more of the above six, tank breaks-fish die and the manufacturer replaces it.
__________________
vfc is offline   Reply With Quote
Old 08-14-2008, 03:27 PM   #19
Aquarium Advice Freak
 
intimatecple's Avatar
 
Join Date: Jan 2008
Location: Pottstown, PA
Posts: 335
Send a message via Yahoo to intimatecple
wow a simple question gets nasty.....Shame shame shame
did the setup come with foam????
no I don't think so.....kind of answers the question don't ya think
__________________
intimatecple is offline   Reply With Quote
Old 08-14-2008, 04:15 PM   #20
Aquarium Advice Addict
 
Join Date: Aug 2006
Location: not here anymore
Posts: 5,338
Holy smoke people...

Here's the original poster's comment:

Quote:
Currently I have one cut so that it sits inside the bottom frame, and most of the weight will be off the outer rim of the tank in fact with the tank empty the bottom is 1/8 inch off the stand. Its a 46 gallon bowfront tank.
The responses about not using foam under the tank are referring to the fact that tanks should be supported AT THE EDGES. The original poster was talking about NOT supporting the edges (where the tank is designed to be supported) and supporting the bottom glass (not the frame or edges) with foam.
__________________

__________________
Kurt_Nelson is offline   Reply With Quote
Reply

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
Aquarium Insulation Laurence General Hardware/Equipment Discussion 4 01-03-2010 03:47 PM
Aquarium Pad.... Lonewolfblue Freshwater & Brackish - General Discussion 13 05-25-2006 03:35 AM
cpr bak pad 2R tbrock General Hardware/Equipment Discussion 4 06-30-2005 12:05 PM
algae pad ringfinger Freshwater & Brackish - General Discussion 7 04-03-2005 05:11 PM
Took charcoal pad from canister...OK? wiz561 Freshwater & Brackish - General Discussion 7 09-08-2003 06:47 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 11:25 PM.


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