Wash & Prep Old Aquarium

[Someoneman]

I managed to pick up a old 65 gal for a steal and am prepping it for use. From vaguely-remembered browsings of related threads years ago, I'm planning to wash off the various residues with water, distilled vinegar and elbow grease, but before I embark, I was wondering if there have been any recent advances in cleaning the old things.

Also, the tank has a pair of 2"-3" holes high up the back for plumbing when in was used as an aquarium, my current plan is to circumscribe them with silicone before slapping a glass or plexi patch over them, but I figured it'd be worth asking for any other ideas. Maybe there's something brilliant I'm overlooking.

[soilentgringa]

Vinegar, water and a razor blade are still the best bet for scraping off deposits.

Aquarium safe silicone and a plexiglass patch sounds like a plan. How high up is the hole?

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[Someoneman]

Razor blades! I knew I was forgetting something. The holes are about 18" and 20" above the baseplate.

[soilentgringa]

Oh yeah just slap a patch over it then if you want.

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