How Long Do Maggots Live? A Guide for Carp Anglers
Maggots have been one of the most reliable carp baits for decades. Whether you’re fishing a dedicated maggot approach, using them in PVA bags, or simply feeding a few by catapult, keeping them alive and fresh can make a huge difference.
So, how long do maggots actually live?
Fresh Maggots
If stored correctly, fresh maggots can live for 2–4 weeks after purchase. The key is temperature.
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2–5°C (fridge): 2–4 weeks
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10–15°C: Around 1–2 weeks
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Room temperature: Only a few days before they begin to turn into casters.
The colder they are kept (without freezing), the slower they develop.
Should You Keep Them in the Fridge?
Yes. Most anglers store maggots in an old fridge or bait fridge. Keeping them cold slows their metabolism, meaning they’ll stay as maggots for much longer.
A few tips:
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Keep them dry.
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Remove any dead maggots regularly.
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Change the maize meal or sawdust if it becomes damp.
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Don’t store them alongside food in your kitchen fridge unless everyone in the house is happy with the idea!
When Do Maggots Turn Into Casters?
At warmer temperatures, maggots naturally begin to pupate into casters.
Generally:
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20°C+ – They can turn into casters within a few days.
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Cool storage – It can take several weeks.
Many anglers actually want casters, as they’re an excellent bait in their own right.
Can You Freeze Maggots?
Yes, although freezing kills them. Frozen maggots are still used by some anglers in spod mixes and groundbait because they’re easier to handle and don’t crawl everywhere.
For hookbaits or loose feeding, live maggots are usually the better option.
Signs Your Maggots Have Gone Bad
Throw them away if you notice:
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A strong unpleasant smell.
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Large numbers of dead black maggots.
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Excess moisture or slime.
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Mould.
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They have completely turned to mush.
Fresh maggots should be firm, lively and have a clean, slightly earthy smell.
Top Tips to Make Them Last Longer
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Store them between 2–5°C.
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Keep them in breathable bait tubs.
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Don’t overcrowd the container.
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Sieve them every few days to remove waste.
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Replace the bedding (maize meal or sawdust) when needed.
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Buy them as fresh as possible before your session.
Over to You
How long have you managed to keep maggots alive?
Do you prefer fishing with live maggots, casters or dead maggots? Have you had any standout sessions using them for carp?
Share your tips and experiences below!