I had a bad episode with 'sticky residue' after using epoxy sticks
I had to remove it from my hardware with, ( ya, I know, bad, ) 99% alcohol ( scarred my skimmer cup for life with micro cracks )
I couldn't remove it with anything else, and it stopped my skimmer's production
Once I removed it, all was good
Hope you're not going to go through the same issues ...
Tank is lookin' stellar dude
