Aquarium Bowing...Is this a problem?

CMG

CMG

Member
I asked this in my chronicle but thought I would get more attention here:

I know most people on here have larger aquariums and most of those have one or many center supports across the top but I just have a little 40g (which I am content with) however it bows out a little in the middle at the top since it doesnt have a brace. I dont know if I should be concerned with this or if its just normal for the tank to expand like that over time from pressure?
 
Kensn

Kensn

Well-Known Member
Acrylic tanks bow. Is this something new you are experiencing? I would be looking for grazing or small cracks in the tank.

How much of a bow is there??
 
CMG

CMG

Member
Oh sorry, duh. Its glass. Its been bowed for a while now. Doesnt seem to be getting worse. No cracks anywhere or strange noises.
 
Frankie

Frankie

Well-Known Member
RS STAFF
Bowing is also normal with glass tanks. I doubt highly there is a tank out there that has no bow at all. I would not worry about it. Unless you think it is excessive? The longer the tank the greater the bow.
 
CMG

CMG

Member
No its just a regular rectangle tank not a bow front tank. I assumed it was normal since it does not have a brace how could it now do some bowing. I do not feel it is excesive.

Jojo: Dont 90g tanks have at least one brace across the top though?
 
burning2nd

burning2nd

Well-Known Member
wow.... you take a strait edge and lay it across the front of a glass tank...

the hole thing should make contact... i would start looking for a new tank..

IMO
 
Frankie

Frankie

Well-Known Member
RS STAFF
Thats not true at all Burning. I won't argue with you. I just want you to show me a picture of a straight edge across your 90 :)
 
CMG

CMG

Member
Good thing too or you might be in the same boat as me and its not very big! haha. I am going to look at it more carefully tonight now that I am getting kind of paranoid. I will look at where the pieces of glass meet and are siliconed and make sure they are still lined up flush with each other. I just always thought it was normal since I didnt have a brace.
 
burning2nd

burning2nd

Well-Known Member
wow.... thats scary... Im gonna check mine... I dont think mine will but maybe it has to do something with the large length....

your talking about 1/2" glass?
 
J

jaubuchon

Member
My 29gal glass tank bows about 3/16". I used to have a 30 long and it also bowed. I wouldn't be too concerned. Glass is a super cooled liquid... Actual can bend and even flow over time. Most larger tanks have cross supports on the top to avoid this.
 
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