

If you’ve ever noticed tiny gnats buzzing around your guinea pig’s cage, you’re not alone. These little pests are a very common problem — especially in warmer months — and they can appear even in the cleanest set-ups. Many owners panic, thinking it reflects poor care, but the truth is: guinea pig environments are naturally attractive to gnats.
The good news? With a few tweaks and some persistence, you can outsmart them.
Why Do Gnats Target Guinea Pig Cages?
Gnats are drawn to:
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Moisture – damp bedding or vegetables left too long.
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Sugars – sweet fruits or sugary veg.
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Warmth & humidity – cosy spaces with limited airflow are ideal breeding grounds.
Even brand-new hay or bedding can hold just enough moisture to keep gnats hanging around, so don’t blame yourself if they suddenly appear.
Tried-and-Tested Ways to Reduce Gnats
✨ 1. Rotate fresh food often
Instead of leaving veg in for long stretches, offer smaller portions more regularly. This keeps food fresh and reduces the chance of gnats settling in.
✨ 2. Refresh hay piles
Hay is essential for guinea pigs, but it can be a hotspot for gnats. Shake it out, rotate piles more often, and avoid damp or musty-smelling batches.
✨ 3. Adjust bedding
Some soft beddings hold more dampness than others. Hemp or kiln-dried wood shavings are often drier options that discourage pests.
✨ 4. Improve airflow
If possible, move cages to a space with better ventilation. Even a slight improvement in airflow can make the area less attractive to gnats.
✨ 5. Set vinegar traps
A shallow dish with apple cider vinegar and a drop of washing-up liquid (kept safely outside the cage) works well to lure and trap adult gnats.
✨ 6. Clean in cycles
Because gnat eggs hatch in waves, it’s worth repeating thorough cleans every 2–3 days for a short stretch to break their breeding cycle.
Why Prevention Works Best
Gnats are opportunistic. Once they’ve found a good spot, they’ll keep coming back unless the environment changes. Managing food freshness and moisture levels is the key to keeping them at bay long-term.
How GGT Can Help
At Guinea Gourmet Treats (https://www.guineagourmettreats.co.uk), we design all our handmade forages and treat blends to stay fresh, naturally dried, and pest-conscious. That means your piggies get the variety and enrichment they need — without leaving damp leftovers that attract gnats.
💚 With GGT forages, you can:
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Provide enrichment that won’t spoil quickly.
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Reduce the chance of gnats being drawn to sugary or damp foods.
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Support your guinea pig’s health with balanced, science-backed blends.
It’s enrichment you can trust — fun for your piggies, frustration-free for you.
Final Thoughts
If you’re battling gnats, don’t be disheartened. It doesn’t mean you’re doing anything wrong — it just means they’ve found an environment they like. With some persistence and smart changes, you can get rid of them.
And if you’d like to explore forage and treat options that support your guinea pig’s wellbeing without drawing in the pests, check out our range here:
👉 Guinea Gourmet Treats Forages & Blends
Your piggies stay happy and enriched — and the gnats don’t get an invite. 🐹✨
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