Often, containing ants inside a formicarium can be a challenge. Several substances are used to repel the ants, including vegetable oil, petroleum jelly, or PTFE(fluon). They are applied to the side of the formicarium to prevent escape. These substances are generally too slippery or sticky for the ants to walk on. Despite this, some species of ants can build bridges of debris or dirt on the substance to escape, while others demonstrate that some individuals can walk on the substance without impedance.

Some formicarium owners shake their formicarium every few days so the tunnels cave in.
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I want an ant farm

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I shall pray to the almighty Dave Mustaine tonight for your safety.