Acrylic aquarium with crazing

[Big Smelly fish]

That’s odd looking, it doesn’t look like your typical crazing in that photo. Is it only in that one spot? I never seen crazing look like that.
As far a the thickness without seeing the whole tank top bracing I couldn’t give advice. But for that size tank if built right it probably ok.

 

[KrisReef]

If acrylic gets hot in one place when you are polishing it might craze. Once it starts it doesn't stop. Sorry.
I would not be afraid to use it but it will get worse. I could hold water for a long time but the risk of that over time is unknown to me.
Welcome to Reef2Reef.

 

[Fish Think Pink]

Would this tank be safe to hold water, it is a 90 gallon used acrylic aquarium with crazing on the front. The dimensions are 60’’ long, 18’’ deep, and 19’’ tall. The acrylic is 1/2” thick on the top and 1/4” on all the sides. Here is the link for the photo of the tank -https://share.icloud.com/photos/030_6Jbzzc8JKDgUY2adt7jaw

Welcome! Glad you joined. Defer to others as I've always had glass tanks but sounds like you've already received some good info.

It is an AMAZING year for Texas saltwater hobby shows - Aquashella in August and Reef A Palooza in October. There are a lot of local events throughout the state, but given size of Texas, this might help you find people local to you since it doesn't indicate where in TX (we are in DFW):

Local Reef Club Discussion

Looking for some locals to share frags and info with? This is the place! Find a local club that meets in your area! If you want to add your club just contact us.

www.reef2reef.com

This is a good reference book type online article I still review:

The Supreme Guide To Setting Up A Saltwater Reef Aquarium

This article was sponsored by @MarineDepot at www.marinedepot.com. Introduction The marine environment is one of the most complex systems on the planet. The aquarium you are about to set up is only a tiny sliver of the vast ocean, but it is no...

www.reef2reef.com

 

[Codfish]

Welcome! Glad you joined. Defer to others as I've always had glass tanks but sounds like you've already received some good info.

It is an AMAZING year for Texas saltwater hobby shows - Aquashella in August and Reef A Palooza in October. There are a lot of local events throughout the state, but given size of Texas, this might help you find people local to you since it doesn't indicate where in TX (we are in DFW):

Local Reef Club Discussion

Looking for some locals to share frags and info with? This is the place! Find a local club that meets in your area! If you want to add your club just contact us.

www.reef2reef.com

This is a good reference book type online article I still review:

The Supreme Guide To Setting Up A Saltwater Reef Aquarium

This article was sponsored by @MarineDepot at www.marinedepot.com. Introduction The marine environment is one of the most complex systems on the planet. The aquarium you are about to set up is only a tiny sliver of the vast ocean, but it is no...

www.reef2reef.com

Thx

 

[Nonya]

Would this tank be safe to hold water, it is a 90 gallon used acrylic aquarium with crazing on the front. The dimensions are 60’’ long, 18’’ deep, and 19’’ tall. The acrylic is 1/2” thick on the top and 1/4” on all the sides. Here is the link for the photo of the tank -https://share.icloud.com/photos/030_6Jbzzc8JKDgUY2adt7jaw

Crazing can be caused by aggressive solvent or stresses in the acrylic sheet itself. I've seen it result from fame polishing, and from the use of alcohol used to clean the surface. Regardless, crazing often leads to failure of the acrylic.

 

[Codfish]

Crazing Acrylic - Select Plastics

Crazing…. That subject always cracks me up… Listen guys, crazing in acrylic is caused by either thermal or mechanical stresses imparted during production, transport, manufacture or in use. Acid rain,Ultra Violet degradation, Windex or the boat detailer’s magic deck cleaner (to name a few)...

selectplastics.com

I wouldn't mess around with crazing, and frankly 1/4" sided 90gal sounds too thin. sounds like a very cheap tank and you dont want that...

It is quite thin however it was built by someone who knew what they were doing, the front corners have a nice curve, and the seems are solid. Here are some pictures.

 

[polyppal]

It is quite thin however it was built by someone who knew what they were doing, the front corners have a nice curve, and the seems are solid. Here are some pictures.

the big issue would be that acrylic crazing isn't really fixable like scratches, takes sanding and hoping that it comes out -ok-... so if you want to permanently see that huge imperfection in the tank...

maybe you can make a contingency with the seller that if you can't remove the crazing you can refund?

 

[Codfish]

the big issue would be that acrylic crazing isn't really fixable like scratches, so if you want to permanently see that huge imperfection in the tank...

You can only see it from straight down, so when the aquarium is on the stand it isn’t visible.

 

[polyppal]

You can only see it from straight down, so when the aquarium is on the stand it isn’t visible.

oh then maybe go for it! is it a great deal?

 

[Nonya]

Sorry..."

Crazing can be caused by aggressive solvent or stresses in the acrylic sheet itself. I've seen it result from fame polishing, and from the use of alcohol used to clean the surface. Regardless, crazing often leads to failure of the acrylic.

Sorry..."flame" polishing.