Super Sad day with silver linning.

  • We are currently upgrading MFK. thanks! -neo
Its not molded acrylic its 6 panels bonded together. I was under the same impression that acrylic doesn't spider like that. I also thought that it would take extreme impact to fracture.

This is what they say about my sheets. The bottom panel still had factory paper so I knew what sheets it was mad from. No t sure how I would calculate the load but surely it was well below 1500psi

Although the tensile strength of ACRYLITE GP sheet is 10,000 psi (69 MPa)
at room temperature (ASTM D638), stress crazing can be caused by continuous
loads below this value. For most applications, continuously imposed design loads
should not exceed 1,500 psi (10.4 MPa).

As far as what I am going to do. The room was built around the tank so I can't simply take it down without having to tear down and rebuild the wall. So I thought I might fill the bottom 1/4 with water and soil and grow some plants in there. Until such time as I can do something else. All in all I am just glad no one was hurt, I have seen the force that an acrylic tank can exert when it blows, and that I had enough spare tanks to house the fish.
 
I had to put a sheet of wood be hind the panel to get a okay picture.

The really strange thing is that with the exception of one they are in the center of the panel you can't feel them from the inside or outside.

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Very unusual... I have heard of Oscars ramming into their aquarium walls and causing issues... but those were in smaller tanks where the fish was stressed.

I am certainly curious how this happened.

I don't suppose you've been buffing the wall a lot recently and thinned it?
 
Yes the tank faces a window. the seams all look fine but the top is warp. from reading it sounds like they made it out of acrylic that was too thin. I have read some post that suggest re-bracing the top to prevent further crazing.

Does anyone one know about this, does it sound like a possibility sure would like to save it. worst case /i will turn it into a Paludarium.

never buffed it.
 
3663claw_hammer.jpg


looks the marks from the claw side of a hammer... got any enemies?
 
If it where from impact the cracks would be on the outside or on the inside, these are "within" the acrylic sheet itself. You can run your finger over the inside and outside and its smooth as the day I got it.
 
they do look similar to strikes. its odd. they dont look like stress fractures. but they could be. i dont think buffing is gonna fix it
 
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