Seam turned white after filling

[Paul Hewlett]

Hey guys,

I just filled my tank for 2nd time (test) and noticed white part inside one of the seams and wonder if it might be a big issue compromising the integrity.

Does anyone have any ideas?

Thank you

It's 90 gallon Seapora (framed)

 

[Gone Reefin’]

@UncommonSense - seems to be the expert on these things

 

[UncommonSense]

I just filled my tank for 2nd time (test) and noticed white part inside one of the seams and wonder if it might be a big issue compromising the integrity.

Holy moley! Did that seam turn white only once filled?

If so, or if you aren’t sure; empty that thing now!

— it looks from the photo like the structural glass:glass silicone seam was squished way too tightly together during assembly, and is stretching/becoming transparent when under load because it’s so thin! (Being in the center of the seam on a rimmed tank also indicates a glass bowing/water pressure related assembly issue)