Fancy Mouse Care Guide

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Setup

Fancy mice are active, intelligent, and social animals that thrive in enriched, cluttered environments. Because they are prey species, they feel safest in habitats with plenty of cover and structure. Their enclosure should include hides, tunnels, cork, wooden pieces, climbing items, and cardboard for shredding. A busy, complex setup encourages natural behaviors such as foraging, nesting, climbing, and exploring.

Provide at least 4 inches of bedding, though 6+ inches is recommended for burrowing and nest‑building. Mice enjoy rearranging their environment, so offering multiple textures and materials helps keep them mentally stimulated.

A water bottle is preferred over a bowl, as mice frequently bury open dishes. If a bowl is used, it must be heavy, shallow, and checked often, but a bottle should remain the primary water source.

Wheels must be solid-surface only (no mesh or bars). Mice run quickly and need a wheel that supports their spine and stride.

Wheel size:
Minimum: 6 inches
Ideal: 8–10 inches (reduces back arching and improves comfort)

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Feeding

Fancy mice eat small, frequent meals throughout the day and naturally hoard food. Their diet should be based on a high‑quality lab block or pellet, paired with a balanced seed mix for enrichment and natural foraging behavior.

Mice require at least 16–18% protein in their diet. If their primary food is lower in protein, supplement with safe high‑protein additions such as quality dog kibble, dried insects, or small amounts of cooked egg.

Food should be refreshed daily. Remove uneaten fresh foods promptly to prevent spoilage. If using a food hopper, clean and refill it weekly to maintain freshness.

Safe enrichment foods include:

• Millet sprays or oat sprays
• Small amounts of seed mix
• Dried vegetables
• Occasional protein sources like mealworms or boiled egg pieces

Treats should be limited to prevent obesity and digestive issues.

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Bedding

Proper bedding is essential for respiratory health and natural nesting behavior.

Safe bedding options include:

• Aspen shavings
• Hemp bedding
• Kiln‑dried pine
• Heavyweight paper bedding
• Shredded cardboard (excellent for enrichment)

These materials provide good odor control, safe ammonia absorption, and comfortable nesting when maintained correctly.

Avoid:

• Scented bedding
• Dusty or powdery substrates
• Fluffy cotton nesting
• Cedar or non‑kiln‑dried pine