Fix 125 gallon tank leak

JMc · 10-25-2011, 08:31 AM

I have an old 125 gallon tank that hasn't been used in a few years. It used to hold oscars, then assorted goldfish. The tank leaks from the back bottom corners. I tried to reseal the tank with silicon from the pet store but it still leaks. The tank is sitting there empty and I would love to fix it so it could be used again. Any ideas?

madtyke · 10-25-2011, 04:56 PM

Hi, You need to cut away the old silicon first and clean the area well before resealing with new silicon. Fresh silicon won't stick to old silicon.

sik-lid · 10-26-2011, 07:19 AM

Madtyk is correct. Remove every last particle of the old silicone then get some ge100% silicone for doors and windows. Tape off the all the seams so that after you silicone the tank you can remove the tape and have perfect lines just like the factory. I had to redo my 125 and it was a laboriuos procedure but now my tank is just like new. Their are some videos on youtube that show the process so check there for a reference and have fun. Good luck

JMc · 10-26-2011, 09:48 AM

Awesome- thanks for the tips! I never thought of trying the silicone for doors and windows. I will try this again. Would love to get the tank running.

susankat · 10-26-2011, 10:59 AM

Get the ge1 silicone as the ge2 contains mold inhibitors.

madtyke · 10-26-2011, 06:07 PM

Agree, make sure you use a suitable silicon as those with mould inhibitors can kill your bacteria

10-25-2011, 08:31 AM	#1 (permalink)
JMc Join Date: Oct 2011 Posts: 13 Name: Jenny Location: NJ Feedback: 0 / 0% Said "Welcome to Aquarium Forum" 14 Times Said "Thanks" 13 Times Was Thanked 1 Time in 1 Post	Fix 125 gallon tank leak I have an old 125 gallon tank that hasn't been used in a few years. It used to hold oscars, then assorted goldfish. The tank leaks from the back bottom corners. I tried to reseal the tank with silicon from the pet store but it still leaks. The tank is sitting there empty and I would love to fix it so it could be used again. Any ideas?

10-25-2011, 04:56 PM	#2 (permalink)
madtyke madtyke's Photo Gallery Join Date: Sep 2011 Posts: 175 Name: Chris Location: Queensland, Australia My location Feedback: 0 / 0% Said "Welcome to Aquarium Forum" 123 Times Said "Thanks" 12 Times Was Thanked 41 Times in 40 Posts	Re: Fix 125 gallon tank leak Hi, You need to cut away the old silicon first and clean the area well before resealing with new silicon. Fresh silicon won't stick to old silicon. __________________ Chris ¯`·.¸¸.·´¯`·.¸><((((º> `·.¸¸..·´¯`·.¸¸.·´¯`·.¸><((((º>

10-26-2011, 07:19 AM	#3 (permalink)
sik-lid Join Date: Sep 2011 Posts: 22 Name: Gary Location: Punta Gorda Florida Feedback: 0 / 0% Said "Welcome to Aquarium Forum" 2 Times Said "Thanks" 13 Times Was Thanked 6 Times in 6 Posts	Re: Fix 125 gallon tank leak Madtyk is correct. Remove every last particle of the old silicone then get some ge100% silicone for doors and windows. Tape off the all the seams so that after you silicone the tank you can remove the tape and have perfect lines just like the factory. I had to redo my 125 and it was a laboriuos procedure but now my tank is just like new. Their are some videos on youtube that show the process so check there for a reference and have fun. Good luck

10-26-2011, 09:48 AM	#4 (permalink)
JMc Join Date: Oct 2011 Posts: 13 Name: Jenny Location: NJ Feedback: 0 / 0% Said "Welcome to Aquarium Forum" 14 Times Said "Thanks" 13 Times Was Thanked 1 Time in 1 Post	Re: Fix 125 gallon tank leak Awesome- thanks for the tips! I never thought of trying the silicone for doors and windows. I will try this again. Would love to get the tank running.

10-26-2011, 10:59 AM	#5 (permalink)
susankat Pleco n bn breeder n BOSS susankat's Photo Gallery Join Date: Nov 2008 Posts: 5,419 Name: Susan Location: Tulsa, Ok Feedback: 9 / 100% Said "Welcome to Aquarium Forum" 4,151 Times Said "Thanks" 1,617 Times Was Thanked 1,809 Times in 1,549 Posts	Re: Fix 125 gallon tank leak Get the ge1 silicone as the ge2 contains mold inhibitors. __________________ SUCCESS IS MEASURED BY YEARS, NOT MONTHS!!! 220 Tank build http://www.aquariumforum.com/f15/sta...late-3253.html

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10-26-2011, 06:07 PM	#6 (permalink)
madtyke madtyke's Photo Gallery Join Date: Sep 2011 Posts: 175 Name: Chris Location: Queensland, Australia My location Feedback: 0 / 0% Said "Welcome to Aquarium Forum" 123 Times Said "Thanks" 12 Times Was Thanked 41 Times in 40 Posts	Re: Fix 125 gallon tank leak Agree, make sure you use a suitable silicon as those with mould inhibitors can kill your bacteria __________________ Chris ¯`·.¸¸.·´¯`·.¸><((((º> `·.¸¸..·´¯`·.¸¸.·´¯`·.¸><((((º>

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