Best Way to Keep Crickets Alive: A Complete Guide

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Crickets are one of the most popular feeder insects for reptiles. They're affordable, widely available, and most lizards, geckos, and snakes go absolutely wild for them. But there's one problem every reptile keeper runs into: crickets die fast.

If you've ever opened a fresh bag of 100 crickets and found half of them dead by morning, you're not alone. The good news? The best way to keep crickets alive isn't complicated. You just need to get a few key things right — housing, temperature, hydration, food, and hygiene.

Follow the steps in this guide and you'll see a dramatic improvement in how long your feeder crickets last.

Why Do Crickets Die So Fast?

The common house cricket (Acheta domesticus) is surprisingly fragile for such a noisy little insect. Most die-offs come down to a handful of preventable causes:

• Poor ventilation — Ammonia from waste builds up fast in sealed containers and kills crickets quickly
• Wrong temperature — Too cold slows them down; too hot kills them outright
• Drowning — Crickets need moisture but will drown in open water dishes
• Overcrowding — Stressed, crowded crickets turn cannibalistic fast
• Dirty enclosures — Dead crickets release bacteria that spread rapidly through the whole batch

Once you understand the causes, prevention becomes straightforward. Let's go through each fix.

Step 1: Set Up the Right Cricket Housing

Your container choice makes or breaks your cricket survival rate. Get this right first.

Choose a Well-Ventilated Container

A large plastic storage bin works perfectly. Aim for at least 10–15 gallons for a batch of 100–500 crickets. Taller bins are better — crickets jump, and you don't want escapes every time you open it.

The single most important feature is ventilation. Cut large openings in the lid and upper sides of the bin, then cover them with fine mesh or window screen secured with hot glue or tape. This keeps ammonia and excess moisture from building up.

Avoid airtight containers entirely. That's the fastest way to kill a whole batch overnight.

Add Hiding Spots — This Is Critical

Without places to hide, crickets pile on top of each other. That causes stress, fighting, and rapid cannibalism. Add plenty of hides:

• Cardboard egg flats (cheapest and most effective)
• Toilet paper rolls or paper towel tubes
• Small cardboard boxes

Stack these vertically so crickets can spread out at different levels. This single change dramatically cuts death rates from stress and aggression.

Skip the Substrate

Don't put bedding or substrate on the floor of the bin. Substrate traps moisture, grows mold, and makes cleaning much harder. A bare plastic floor is easiest to keep clean and dry.

Step 2: Keep the Temperature in the Sweet Spot

Temperature is one of the biggest factors in cricket longevity. The ideal range for Acheta domesticus is 75–85°F (24–29°C).

At this temperature, your crickets stay active, eat well, and can live 2–4 weeks without issue.

• Below 65°F: Crickets slow down significantly. They eat less, move less, and are more prone to dying.
• Above 90°F: Crickets overheat and die within hours.

If your home runs cool, a reptile heat mat placed under one side of the bin works well. Only heat one side — this gives crickets a warm zone and a cooler retreat so they can self-regulate.

Never put the cricket bin in direct sunlight. Temperatures inside can spike to dangerous levels within minutes.

Step 3: Provide Water the Right Way

This is where most beginners make a fatal mistake. Crickets absolutely need moisture to survive — but a bowl of standing water will drown them.

Here are the three safest hydration options:

Cricket water gel — This is the best option by far. Hydration gel crystals absorb water and release it slowly. Crickets can drink from the moist surface without falling in and drowning. They're inexpensive and last a long time.

Fresh vegetables — Sliced potato, orange, cucumber, or apple all provide hydration without open water. Replace these every 24 hours to prevent mold.

Damp paper towel — A small wet paper towel in a very shallow dish works in a pinch. Swap it out daily.

Whatever you choose, never use an open bowl of water. Crickets will fall in, drown, and quickly contaminate the rest of the batch.

Step 4: Gut-Load Your Crickets Before Feeding

Here's a tip that benefits your reptile just as much as your crickets: what your crickets eat becomes what your reptile eats. This is called gut-loading, and it's one of the most valuable practices in reptile keeping.

A well-fed cricket is a nutritious cricket. A cricket fed on cardboard and water is nutritionally almost worthless.

Best Foods for Gut-Loading

Foods to Avoid

Some foods harm your crickets or your reptile:

• Spinach — Blocks calcium absorption (oxalates)
• Iceberg lettuce — Nearly zero nutritional value
• Dog or cat food — Too high in protein; can kill crickets quickly
• Avocado — Toxic to many insects

Gut-load your crickets for at least 24–48 hours before feeding them to your reptile. Replace fresh food every 24 hours so it doesn't mold.

Step 5: Dust Before Feeding

After gut-loading, the final prep step is dusting. Add 5–10 crickets to a small bag or deli cup, toss in a pinch of reptile calcium powder with D3, and shake gently. Feed immediately — the powder falls off within 15–30 minutes.

Calcium dusting is especially important for:

• Bearded dragons
• Leopard geckos
• Chameleons
• Any reptile kept without proper UVB lighting

Without enough calcium in the diet, reptiles can develop metabolic bone disease (MBD) — a painful, preventable condition. Don't skip this step.

Step 6: Keep the Enclosure Clean

A dirty cricket bin is a death trap. Dead crickets release bacteria and gases that spread rapidly through the enclosure.

Here's a simple cleaning routine:

1. Daily — Remove dead crickets immediately when you spot them
2. Every 2–3 days — Remove old food, shed exoskeletons, and feces
3. Weekly — Full clean: transfer live crickets to a temporary container, wash the main bin with hot water (add a tiny bit of bleach if needed), rinse completely, dry, and return crickets

The smell test works well here. If your cricket bin smells strongly of ammonia, it needs cleaning right now. That smell means waste levels are high enough to kill your crickets fast.

How Many Crickets to Buy at Once

Buying the right quantity matters. Too many means more die before you use them. Too few means constant store trips.

A reasonable guide by reptile:

• Adult bearded dragon: 50–100 crickets per week
• Juvenile bearded dragon: 20–50 per week
• Adult leopard gecko: 10–20 per week
• Multiple reptiles: order in bulk online and maintain a proper cricket station

For keeping multiple reptiles fed, a dedicated cricket keeper container makes the whole process cleaner and more organized.

Online Orders vs. Pet Store Crickets

(Estimates only — actual prices on Amazon may vary.)

This is a practical question worth addressing. Pet store crickets cost more and often arrive in worse condition. A bag of 50 from a pet store might run $5–8, and many stores keep crickets in overcrowded, poorly ventilated conditions.

Online bulk suppliers typically sell 500–1,000 crickets for $15–25 shipped. The crickets usually arrive healthier because these suppliers specialize in live insect shipping. If you feed reptiles regularly, ordering online almost always makes financial sense.

Separating Sizes and Ages

Crickets are cannibalistic by nature. Large crickets will eat small ones given the chance. If you order a mixed batch, keep similar sizes together.

For most keepers buying 50–100 at a time on a weekly cycle, this is rarely a major issue. Just avoid mixing freshly hatched pinheads with adult crickets.

Considering Alternatives to Crickets

Crickets are a solid feeder insect, but they're not the only option. If the smell or die-off rate is frustrating you, consider adding some variety:

• Dubia roaches — Quieter, less smelly, higher protein, and they live much longer between feedings
• Black soldier fly larvae (BSFL) — Excellent calcium-to-phosphorus ratio and very easy to store
• Mealworms — Easy to refrigerate for slow feeding, though lower in protein

Many experienced keepers rotate feeders to give their reptiles dietary variety — which is great for long-term health. If you're thinking about which reptiles benefit most from insect-based diets, our guide to the Best Pet Snake to Get: 8 Top Picks for Every Keeper breaks down species-specific feeding needs in detail.

For keepers curious about expanding their reptile collection, the Best Snakes to Have as Pets: Top 10 Choices for Every Keeper covers a range of insect-eating species that do well on a cricket-and-dubia diet.

Common Cricket-Keeping Mistakes (Quick Reference)

Here's a fast summary of the most common mistakes and how to fix them:

The Best Way to Keep Crickets Alive: Summary

To recap the best way to keep crickets alive for your reptile:

1. Use a large, ventilated plastic bin
2. Add egg flats or cardboard hides
3. Keep temperature at 75–85°F
4. Hydrate with water gel — never open water
5. Gut-load with nutritious greens and commercial formula
6. Remove dead crickets daily and clean weekly
7. Dust before every feeding with calcium powder

None of this is complicated, and the setup cost is minimal. Once you've got the routine dialed in, your cricket survival rate will improve dramatically — and your reptile will get healthier, better-nourished feeder insects at every meal.