I'm not really concerned with the trim. From what i have read they are just for looks and so you don't cut yourself on the glass. The trim was held on with silicon and very flimsy. Since i just cut out a section, and because the rest of the trim is siliconed on very well, i don't think taking a section out will compromise the tanks structural integrity even if it is used for that purpose. On a larger tank i might be more worried, but with those they have added bracing.