Craigslist tank yay or nay?

[Jeanna]

Hi there! My husband bought a used 55 gallon tank off Craigslist but noticed what appears to be a bubble in the silicone seal. Our obvs concern is catastrophic tank failure on that seam. However from the outside it appears solid. Anyone able to give some advice? Thanks!

 

[Shep]

If in doubt, throw it out. You can buy new tanks for pretty cheap on sale. A few extra bucks is well worth not waking up to a flooded room full of dead fish and corals

 

[Crabs McJones]

I don't think thats a bubble, looks more like a chip in the corner.

 

[Ashish Patel]

I would take the time to re-silicone the tank before using it, but more of a concern would be the center bracing on a used tank, I would recommend to add a piece of acrylic siliconed under the bracing since I've seen a 55gallon bend 3" from front to back on a failed bracing.

 

[BZOFIQ]

That's a chip in the glass it would appear and not a bubble in the silicone. If you take a blade you can likely separate the chip from the glass to confirm. I'd throw it out if chipped.

Wait for Petco's $1 a gallon, and you'll have a brand new 55-Gallon tank for around $60 bucks; you'll sleep better too.