Repairing tank with cracked bottom
Planted Tank Forums
Your Tanks Image Hosting *Tank Tracker * Plant Profiles Fish Profiles Planted Tank Guide Photo Gallery Articles

Go Back   The Planted Tank Forum > Specific Aspects of a Planted Tank > DIY


Reply
 
Thread Tools Display Modes
Old 12-21-2012, 03:24 PM   #1
Revonok
Algae Grower
 
PTrader: (0/0%)
Join Date: Oct 2012
Location: Illinois
Posts: 18
Default

Repairing tank with cracked bottom


I'm sorry if this isn't the right place, but I'm at work and couldn't find anywhere that seemed like a better place to put this.

So my friend recently purchased a very nice 30 gallon tank, but didn't realize until after she brought it home that there was a small crack in the bottom pane of glass.

I have an extra piece of glass from a 10 gallon tank I tore down, and I was wondering if I could sort of "patch" the glass so to say? I was thinking if I used enough aquarium safe silicone, maybe I could silicone the crack real good then place the extra panel of glass (it covers the entire crack + like 5 inches or more on every side) over the crack and get the edges sealed real well with silicone also.

Has anyone ever tried this? Does it sound like a disaster waiting to happen? We filled the tank 3/4 of the way with water and it didn't leak or crack anymore so I really hope it's doable, I can't afford to replace the entire bottom at the moment, Thanks.
Revonok is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 12-21-2012, 05:40 PM   #2
R.sok
Planted Tank Obsessed
 
PTrader: (0/0%)
Join Date: Sep 2012
Location: wa state
Posts: 362
Default

I think it is a disaster waiting to happen. But if it were me & I was set on doing this without the correct bottom panel or just to test it for the hell of it, I would use silicone & put that "patch" on top & then place something on the outer bottom on the tank. Maybe a cut piece of wood so the pressure doesn't push through the lower crack.

I am not responsible for what you decide to do in case of a disaster, this is just an idea...
R.sok is offline   Reply With Quote
Old 12-21-2012, 06:43 PM   #3
Revonok
Algae Grower
 
PTrader: (0/0%)
Join Date: Oct 2012
Location: Illinois
Posts: 18
Default

Thank you for the reply. I know it's not ideal but I'm hoping it will work, I guess I'll find out. I had planned to put some sort of reinforcement on the bottom side as you suggested, probably along the length of the aquarium but inside the plastic trim, in hopes it would allow the weight to be distributed more evenly.
Revonok is offline   Reply With Quote
Old 12-21-2012, 07:01 PM   #4
Darkblade48
Moderator
 
Darkblade48's Avatar
 
PTrader: (3/100%)
Join Date: Jan 2008
Location: Toronto
Posts: 9,216
Default

If you can't replace the entire pane of glass, then don't bother patching it, it is just a waste of time and materials, in my opinion.

It is also extremely risky, as the aquarium would not be any safer to use...
__________________
Anthony

A Primer to Pressurized CO2 and A Primer to Planted Tanks
Eheim Pimp #362 - Eheim 2213 x2, Eheim 2028, Eheim 2217, Eheim surface skimmer and Eheim autofeeder.
Victor Pimp #33 - HPT272-125-350-4M
Darkblade48 is offline   Reply With Quote
Old 12-21-2012, 07:06 PM   #5
Revonok
Algae Grower
 
PTrader: (0/0%)
Join Date: Oct 2012
Location: Illinois
Posts: 18
Default

Have you ever attempted it or know anyone who has? I'm by no means arguing your point, I'm hesitant to try myself honestly lol I've just seen a few people saying they've done this with success.
Revonok is offline   Reply With Quote
Old 12-21-2012, 07:12 PM   #6
Wy Renegade
Planted Tank Obsessed
 
Wy Renegade's Avatar
 
PTrader: (3/100%)
Join Date: Nov 2011
Location: Wyoming
Posts: 369
Default

I hate to say it, because I also view it as a disaster just waiting to happen, but I do know some people who did it with a 125 gallon. Two pieces of glass, one above and one below, and lots of aquarium silicon and it has been up and running with a full reef in it for five years now without issue. It is most definitely not something I would do however.
Wy Renegade is offline   Reply With Quote
Old 12-21-2012, 07:13 PM   #7
JoeGREEEN
Planted Member
 
JoeGREEEN's Avatar
 
PTrader: (0/0%)
Join Date: Jun 2011
Location: Miami, Florida
Posts: 224
Default It can be done

Ive patched side cracks before with no problem

I think if you use a piece of at least 1/8" thick glass and patch it on the inside of the tank and then place a piece of foam (like the pink foam & NOT styrofoam) on the inner bottom you should be fine.

I would go to a local glass shop and have them custom size a glass pane the size of the inside of the bottom and just silicone that on the cracked bottom.

Just be sure to use aquarium safe silicone (Silicone 1 by GE ) and put a good bead along all the cracks.
__________________
Jelly Babies?
JoeGREEEN is offline   Reply With Quote
Old 12-21-2012, 07:21 PM   #8
Revonok
Algae Grower
 
PTrader: (0/0%)
Join Date: Oct 2012
Location: Illinois
Posts: 18
Default

Joe, have you ever used that method for bottom cracks? It's a very small crack (maybe 2 1/2 inches) and the tank held water with the crack there, I just wanted to try and do what I could to help it not get worse. I'll keep you all informed so you can either say wow it worked or have a good laugh and see pictures of my friends ruined carpet XD

Thank god my tanks are all okay >_>
Revonok is offline   Reply With Quote
Old 12-21-2012, 07:29 PM   #9
R.sok
Planted Tank Obsessed
 
PTrader: (0/0%)
Join Date: Sep 2012
Location: wa state
Posts: 362
Default

My friend has done it before with a 10gallon running for a year with no disasters. he used the pink foam from homedepot, I forgot what thickness but it was slightly thicker than flush, with water poured in it leveled itself out & acted as a support.

Again do this at your own risk & keep in mind even though the crack is only 2 1/2 inches it will spread over time. Idk how much used 30 gallon tanks go for in your area but around here they can be had 15-50 used..sometimes even free which is far better than the risk
R.sok is offline   Reply With Quote
Old 12-21-2012, 07:44 PM   #10
JoeGREEEN
Planted Member
 
JoeGREEEN's Avatar
 
PTrader: (0/0%)
Join Date: Jun 2011
Location: Miami, Florida
Posts: 224
Default

This method has been done on bottom glass but not by me. (only back and side)

If your friend is desperate for a quick fix then use the glass you got from the 10G & make sure its siliconed inside of the tank and a good bead along each crack and use that plush pink foam cut to the inner perimiter of the bottom frame and place it below the tank.

and even with all this I would stress test it outside after it dries over newspaper for 72hrs , just to make sure.
__________________
Jelly Babies?
JoeGREEEN is offline   Reply With Quote
Old 12-21-2012, 07:51 PM   #11
Revonok
Algae Grower
 
PTrader: (0/0%)
Join Date: Oct 2012
Location: Illinois
Posts: 18
Default

Thank you all for the replies and great info, it's much appreciated. Luckily I have plenty of that insulation foam board stuff on hand in various thicknesses so I'll see which fits the best and go from there. I'll keep you all posted if anyone is interested to hear the results. :]

Also R.Sok, I've looked locally online and in classifieds but apparently aquariums aren't popular around here, cause' I've found NOTHING. Lots of great stuff on AquaBid but not in my state and local pickup only lol
Revonok is offline   Reply With Quote
Old 12-21-2012, 08:14 PM   #12
JoeGREEEN
Planted Member
 
JoeGREEEN's Avatar
 
PTrader: (0/0%)
Join Date: Jun 2011
Location: Miami, Florida
Posts: 224
Default

K' goodluck and keep us posted
__________________
Jelly Babies?
JoeGREEEN is offline   Reply With Quote
Old 12-24-2012, 10:25 AM   #13
joefish72
Algae Grower
 
PTrader: (0/0%)
Join Date: Mar 2012
Location: Florida
Posts: 23
Default

Quote:
Originally Posted by Revonok View Post
Have you ever attempted it or know anyone who has? I'm by no means arguing your point, I'm hesitant to try myself honestly lol I've just seen a few people saying they've done this with success.
I repair and rebuild tanks and the short answer is yes it can be done. Note: There are no advantages to fixing a 30 gallon since you can buy one new at petco for $30 when they do the buck a gallon sale.
joefish72 is offline   Reply With Quote
Old 12-25-2012, 05:46 AM   #14
boxhead1990
Planted Tank Obsessed
 
PTrader: (0/0%)
Join Date: Aug 2011
Location: australia
Posts: 325
Default

It would be the same as putting a patch over where a tank has been drilled just make sure there's no air pockets and it will be fine chances are the crack doesn't leak anyways
boxhead1990 is offline   Reply With Quote
Old 12-25-2012, 09:14 AM   #15
hydrophyte
Planted Tank Guru
 
PTrader: (141/100%)
Join Date: Mar 2009
Location: Madison, Wisconsin
Posts: 9,561
Default

It is generally much wiser to just purchase a new tank. Thirty gallons of water can do a lot of expensive damage.
hydrophyte is offline   Reply With Quote
Reply

Thread Tools
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

Forum Jump


All times are GMT. The time now is 06:50 PM.


Powered by vBulletin®
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright Planted Tank LLC 2012