Fish tank crack repair

[fish48]

I noticed one of my tanks started slowly leaking after removing fish and substrate I found a very large crack on the base of fish tank , I didn't have a piece of glass to cover the whole inside of base so I made do with a piece of glass that is large enough cover the crack, this two foot tank is more than 30 years old so after placing glass over crack I decided to reseal over corners and removed loose brace and reglued , it's the first time that I have used HA6 silicone recommended for the use in aquariums in 24 hours this old tank will be back up and running

 

[GaryE]

That's a tough crack to seal. In a 30 year old tank, it may not work. I wouldn't fill it in an apartment tor over expensive flooring.

I've fixed a lot of cracks, with about a 50% success rate after 3 months. Back and side glass cracks aren't really an issue in smaller tanks (20 gallon and under) but I haven't won a lot of battles with bottom glass.

 

[Archerfish]

I would also look to see what caused the tank to crack. Very likely it will recur unless that issue is resolved.

 

[Back in the fold]

I’ve seen that done before . It will work .

 

[Fishmanic]

Or you could try applying “crack spackle.”

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I hope fellow mods dont ban me

 

[fish48]

Or you could try applying “crack spackle.”

View attachment 357026

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I hope fellow mods dont ban me

very funny lol