Air bubbles in silicone

[0utworld]

Hi all,

I've had my 20 gallon IM nuvo for around 6 months and noticed that there's an air bubble in the silicone sealing near the bottom right of the tank. This is the first time I've done a thorough check, so I don't know if the bubble was there since manufacturing.

I am a little bit concerned as my tank isn't completely levelled (around 0.2 inch max difference in water level). But I just wanted to see what you folks think of the air bubble. Is it caused by water pressure or was it there from the beginning?

Thank you in advance!

 

[Hydrored]

I wouldn’t worry about it, I have small ones in my 8’

more than likely there from the beginning, as long as it doesn’t spread