Should I be worried about this?

[robwcormack]

This is in the bottom of my fluval flex 32.5 tank in the sump part. Can’t really tell if it’s a scratch or crack. Haven’t set the tank up yet as I just bought it a week ago. It was never used, but I bought it from someone off FB. Is there anything I should do about it?

 

[Fish Fan]

That looks like a scratch to me, it's on the underside and nothing you'll ever see. I think you're fine. Good luck!

 

[Kingsley_Reef]

This is in the bottom of my fluval flex 32.5 tank in the sump part. Can’t really tell if it’s a scratch or crack. Haven’t set the tank up yet as I just bought it a week ago. It was never used, but I bought it from someone off FB. Is there anything I should do about it?

Most likely just a scratch doesn’t look too concerning to me

 

[Psyduck]

Its a tempered glass so if it was cracked, i think you would have seen it already. Run it over with your finger nail to see how deep it is. I think its a scratch.

 

[MoshJosh]

Looks like a scratch, though check under the tank as it could just be a hair (usually dog hair in my house) stuck to the leveling mat.

That said, IMO the glass on these is very scratch-able ( I have like 4 on the front of mine I have no idea where they came from), so scratch would not surprise me.