I Was cleaning my tank and chipped the very edge. It is a 20 gallon. Do you think it's safe to use?
As you can see, I can peel the glass since theres silicone on it. It's more like the glass is flaking. It is not deep at all.
If the silicone doesn't seem damaged, I would use a 5 minute clear setting epoxy to repair the chips on the edge of the glass. I've used this method on a 33L tank with only 2 chips that were still attached and haven't had any leaking issues in a year.