My newly built 300 gallon by my 20 yr experienced tank builder...silicone question

This is a 12mm tank reinforced with 12mm x 5cm entire base strips and has 2x30cm top bridges in 12mm too. The bottom panel has these weird dots and squiggles for 30% of the tanks length ( the reinforcement 12mm strips ontop of that and has no bubbles btw) and have a 10cm section on the left bottom on side panel ....tanks full and been running 2 wks no changes in bubbles / spots etc .......is this silicone job an issue as im hoping on having this tank for ma.y years ! Thx guys

 

[kharmaguru]

It's not great. I've seen tanks like that never fail, but they also weren't 300 gallons. What is your builder saying?

 

[alton]

Looks like the glass was not clean either oil or something else? When the silicone was applied it separated like that? Attached is a picture of my Planet 70 that uses black silicone and its perfect the entire tank. Experienced tank builders silicone jobs are flawless