Trim on aquarium - The Planted Tank Forum
 6Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 17 (permalink) Old 12-11-2016, 11:33 PM Thread Starter
Planted Tank Guru
 
Blackheart's Avatar
 
PTrader: (2/100%)
Join Date: Jul 2011
Location: Sterling Heights, Michigan
Posts: 3,024
Trim on aquarium

So I've heard varying stories on what purpose the trim on an aquarium has, but I'm gonna ask you guys. What purpose does it serve? Is it something on there that is intended to help the tank structure-wise? Or is it just for looks? Reason I ask is because I just got a brand new 30 gallon long tank today and the entire back top trim is loose on it. Should this be a cause for concern?
Blackheart is offline  
Sponsored Links
Advertisement
 
post #2 of 17 (permalink) Old 12-11-2016, 11:52 PM
Wannabe Guru
 
Coralbandit's Avatar
 
PTrader: (0/0%)
Join Date: Feb 2013
Location: Saratoga,NY USA
Posts: 1,431
I can't say if 'loose' will cause trouble structurally ,but I will say if the top is not sealed completely that if your water level is high enough it will go under the rim and drip on outside...Capillary action I believe? Any name you want I re rimed a 75 years ago so ask me how I know? I had to cob it from the inside after lowering the water enough to get in there....

AKA; RAMBANDIT
WHERE'S YOUR RAMS MAN?

Pictures of some of my fish;
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Fish for sale
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Coralbandit is offline  
post #3 of 17 (permalink) Old 12-12-2016, 12:22 AM
Planted Tank Obsessed
 
John Wong's Avatar
 
PTrader: (0/0%)
Join Date: Dec 2015
Posts: 375
You can use aquarium DIY calculator to calculate for safety factor of your tank in case you by intent or accident remove trim of your aquarium

Sent from my MX4 using Tapatalk
Bananableps and Bananableps like this.
John Wong is offline  
 
post #4 of 17 (permalink) Old 12-12-2016, 01:05 AM
Wannabe Guru
 
PTrader: (1/100%)
Join Date: Jun 2014
Location: rochester ny
Posts: 1,401
Serves a couple purposes, depending on track and design. Some are aesthetic, some are structural, they hold a hood in place, they protect the edge of the glass, they are usually cheaper than polishing the edges of the glass to look pretty, and they prevent you from cutting yourself on s potentially sharp glass edge
Bananableps and Bananableps like this.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Help build the [
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
] and [
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
]
theatermusic87 is offline  
post #5 of 17 (permalink) Old 12-12-2016, 09:23 PM
Wannabe Guru
 
lksdrinker's Avatar
 
PTrader: (9/100%)
Join Date: Feb 2014
Location: NY; LETS GO METS
Posts: 1,916
If the tank trim has a center brace it is definitely structural. A 30 gallon tank probably didnt have a center brace; so in that case its pretty much just aesthetic.

Rich's Fishes
Curator of an ever growing fishroom that currently houses 30 different tanks. Most full of at least water....some even have fish!
lksdrinker is online now  
post #6 of 17 (permalink) Old 12-13-2016, 04:05 AM
Wannabe Guru
 
AbbeysDad's Avatar
 
PTrader: (0/0%)
Join Date: Apr 2016
Location: Central New York, USA
Posts: 1,342
It's structural and shouldn't be loose - I'd return it and get a better one.

Tank On, Mike-
60g Marineland Community, Finnex Planted+ 24/7, Silica (pool filter) sand.
10g, 29g, & 37g fry grow out tanks, 110g stock tank.


What came first, the chicken or the egg. It was the egg, but not the egg from a chicken.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
AbbeysDad is offline  
post #7 of 17 (permalink) Old 12-13-2016, 11:21 AM
Planted Tank Obsessed
 
SwissCheeseHead's Avatar
 
PTrader: (1/100%)
Join Date: Dec 2014
Location: Madison, WI
Posts: 452
Quote:
Originally Posted by lksdrinker View Post
If the tank trim has a center brace it is definitely structural. A 30 gallon tank probably didnt have a center brace; so in that case its pretty much just aesthetic.
I always wondered if the center brace really did serve any purpose on my 36 gallon bowfront. The reason I'm saying is because the brace is so easily bent. if it were truly supporting anything, it would be more rigid than a thin piece of bendable plastic, no? It gets in the way of me netting the debris in my tank. Really annoying, and it's an algae farm.

Love your tanks and they will love you back
SwissCheeseHead is offline  
post #8 of 17 (permalink) Old 12-13-2016, 12:03 PM
Planted Tank Obsessed
 
John Wong's Avatar
 
PTrader: (0/0%)
Join Date: Dec 2015
Posts: 375
Quote:
Originally Posted by SwissCheeseHead View Post
I always wondered if the center brace really did serve any purpose on my 36 gallon bowfront. The reason I'm saying is because the brace is so easily bent. if it were truly supporting anything, it would be more rigid than a thin piece of bendable plastic, no? It gets in the way of me netting the debris in my tank. Really annoying, and it's an algae farm.
Can you post a picture??
Not sure about bow front, but last time when I custom build my tank(rimless) I came across calculator that calculate safety factor of my design which include factor such as glass thickness, length, height etc. It will generalized everything into a number called safety factor.
Ex: my tank is 90*25*25, glass thickness 5mm, safety factor above minimum of 3.8(around 7+), glass bending = Xmm.

If it truly serve structural purpose it should be solid to prevent water pressure from bending glass panel.


Sent from my MX4 using Tapatalk
John Wong is offline  
post #9 of 17 (permalink) Old 12-13-2016, 02:06 PM
Wannabe Guru
 
PTrader: (6/100%)
Join Date: Jan 2014
Location: United States
Posts: 1,719
Quote:
Originally Posted by SwissCheeseHead View Post
I always wondered if the center brace really did serve any purpose on my 36 gallon bowfront. The reason I'm saying is because the brace is so easily bent. if it were truly supporting anything, it would be more rigid than a thin piece of bendable plastic, no? It gets in the way of me netting the debris in my tank. Really annoying, and it's an algae farm.
But bending it would push the front glass in. The force is pulling on it. How easy could you break it if you pulled straight on it.
Kubla is online now  
post #10 of 17 (permalink) Old 12-13-2016, 02:18 PM
Planted Tank Obsessed
 
SwissCheeseHead's Avatar
 
PTrader: (1/100%)
Join Date: Dec 2014
Location: Madison, WI
Posts: 452
If I pushed down on it, it could easily bend and probably snap if pushed enough, with a full tank of water. It seems pretty cosmetic in my case. I know I've accidentally leaned on it before without realizing it and worried about it cracking. I don't have a pic on hand, but it's just a thin piece of black plastic from the front of the trim, to the back of the trim. it is not taut or rigid by any means.



Not my tank but identical to this. (hope i'm not breaking any forum rules). I can snap a pic when I get home too, and maybe try to show the deflection of the plastic.

Love your tanks and they will love you back
SwissCheeseHead is offline  
post #11 of 17 (permalink) Old 12-13-2016, 03:09 PM
Wannabe Guru
 
lksdrinker's Avatar
 
PTrader: (9/100%)
Join Date: Feb 2014
Location: NY; LETS GO METS
Posts: 1,916
Quote:
Originally Posted by SwissCheeseHead View Post
I always wondered if the center brace really did serve any purpose on my 36 gallon bowfront. The reason I'm saying is because the brace is so easily bent. if it were truly supporting anything, it would be more rigid than a thin piece of bendable plastic, no? It gets in the way of me netting the debris in my tank. Really annoying, and it's an algae farm.
even though its thin and flimsy is is serving a structural purpose by holding the front and back panels together. Take that empty tank and measure the distance across the top of the tank from the back panel to the front. Now fill the tank and take that same measurement and I'm sure you'll see there is a difference. Now break that center brace and take the same measurement again when the tank is full and I'm sure you'll see the measurement increased even more. Will the tank completely fail the instant the center brace is broken? No, probably not, but it is serving a purpose.

Rich's Fishes
Curator of an ever growing fishroom that currently houses 30 different tanks. Most full of at least water....some even have fish!
lksdrinker is online now  
post #12 of 17 (permalink) Old 12-13-2016, 03:53 PM
Planted Tank Obsessed
 
SwissCheeseHead's Avatar
 
PTrader: (1/100%)
Join Date: Dec 2014
Location: Madison, WI
Posts: 452
Logically, if the brace is actually carrying any load, it would be taut, correct, or at least more structurally sound? With it being as flexible as it is, when full, I really don't think it's carrying any load or that it is supporting any structure. This is a bow front tank remember, so it is likely different than a conventional rectangular tank. I'm not going to cut it off or anything, but it's just annoying for the reasons stated above.

Love your tanks and they will love you back
SwissCheeseHead is offline  
post #13 of 17 (permalink) Old 12-13-2016, 04:59 PM
Algae Grower
 
fishman922's Avatar
 
PTrader: (0/0%)
Join Date: Oct 2016
Location: Maryland
Posts: 121
You are introducing a moment into the internal force of the brace, something it is not designed for. It is designed around a high sheer and not a moment. How taut it is depends on the material, think about a rubber band. If you stretch it between two ends of the top of a chair the rubber band is taught. However you can still deform it in the other direction, just (depending on the rubber band) not very much. The brace is a similar situation, but it isn't under a heavy load (likely) and can still deform without loosing its static equilibrium of sheer in the other direction (The force from the tank). If you want I can create a diagram with pictures sometime. (I have a 38 Gallon bowfront with the same center brace)
So yes it is taking load, just not enough for the plastic to immediately fail when deformed.
-Source, my understanding of statics from Engineering School... (I am an EE not an ME or CE though)
Kubla, Kubla, lksdrinker and 1 others like this.
fishman922 is offline  
post #14 of 17 (permalink) Old 12-13-2016, 07:16 PM Thread Starter
Planted Tank Guru
 
Blackheart's Avatar
 
PTrader: (2/100%)
Join Date: Jul 2011
Location: Sterling Heights, Michigan
Posts: 3,024
Yeah I will definitely be returning it. It does have a center brace. It's a 38 tall tank.
Blackheart is offline  
post #15 of 17 (permalink) Old 12-13-2016, 07:49 PM
Wannabe Guru
 
PTrader: (6/100%)
Join Date: Jan 2014
Location: United States
Posts: 1,719
It doesn't need to have any strength the direction you're pushing it. There is no force on it that way. The force is trying to stretch it. What if you replaced it with a piece of 1/8" stainless steel cable? It would be good for holding over 300 pounds of outward force, but you could easily deflect (bend) it with your little finger.

A manufacturer won't go to expense of extra pieces unless there is a reason.
Kubla is online now  
Reply

Tags
None

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the The Planted Tank Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome