Comparisons
Crickets vs Discoid Roaches: The Complete Feeder Comparison
Crickets and discoid roaches are the two most popular staple feeder insects in the reptile-keeping hobby. Both are reliable, both are cost-effective, both are accepted by virtually every insectivorous reptile. They differ meaningfully on nutrition, mess, smell, escape risk, and long-term keeping practicality. For most experienced keepers, the answer to "which is better?" is "discoids" — but the case for crickets is real, and many keepers run both. This guide covers what each does well and where each fails.
Side-by-side nutrition
| Metric | Crickets | Discoid roaches |
|---|---|---|
| Protein (dry weight) | ~65% | ~60% |
| Fat | ~22% | ~25% |
| Calcium : Phosphorus | ~1 : 9 | ~1 : 3 |
| Moisture | ~73% | ~65% |
| Chitin (exoskeleton) | Moderate | Slightly higher |
The big nutritional advantage for discoids: a calcium-to-phosphorus ratio three times closer to the 2:1 reptiles need. Calcium dusting still matters, but discoids reduce how much heavy lifting the supplement has to do.
Where crickets win
Strong feeding response
Crickets jump and chirp. They activate the strike instinct in almost every insectivorous reptile, which makes them the right feeder for animals that have been off food, are newly introduced to enclosures, or are otherwise reluctant to eat. A discoid roach sitting still in a feeder dish often gets ignored.
Wider availability
Every pet store sells crickets. Discoids are less common at the local-pet-store level, though widely available online from feeder breeders.
Lower up-front cost
Crickets are cheaper per gram than discoids — by maybe 30–50% at typical retail. For high-volume keepers, this matters.
Where discoids win
No noise
Crickets chirp loudly — especially males in breeding mood. A bin of 200 crickets in a bedroom is a sleep problem. Discoid roaches are silent.
No smell
Cricket bins develop a distinctive musky odor within days. Discoid bins are nearly odorless when properly maintained.
Vastly lower mortality in storage
Crickets die fast — a 500-count bag often loses 30–50% over a week. Discoids stay alive for weeks to months in proper conditions. Per dollar of usable feeder, discoids often beat crickets despite the higher per-gram price.
Better calcium ratio
Already covered above — 1:3 vs 1:9. For reptiles prone to MBD, discoids do real work that crickets can't.
Florida-legal, non-pest
Discoid roaches are the one cockroach species federally allowed across most of Florida and other regions where roach feeders are restricted. They cannot establish wild populations — they need 78°F+ temperatures and consistent humidity to reproduce. An escaped discoid dies. An escaped cricket survives in many climates.
No climbing
Discoid roaches cannot climb smooth surfaces. Open-top feeder bins work for discoids; crickets need lids.
Where they're roughly equivalent
- Feeder species accepted: virtually all insectivorous reptiles eat both
- Sizing flexibility: both come in nymph through adult sizes
- Gut-loading: both can be gut-loaded with calcium-rich and nutrient-dense feeders 24–48 hours before being fed off
- Subcutaneous fat content: similar — both moderate-fat staples
The keeper-experience reality
For most established reptile keepers, discoids replace crickets as the staple after about a year. The reasons aren't nutritional — they're practical:
- You stop dealing with chirping
- You stop dealing with the smell
- You stop replacing dead crickets
- You stop chasing escapees across the kitchen
The exception is keepers who feed only occasionally — a single small lizard eating once or twice a week. At that volume, mortality losses on a 100-count cricket order are minor and the cricket cost advantage holds.
Hybrid approach (the actual best practice)
Most experienced keepers run both:
- Discoids as staple (5–7 days per week) for calcium balance and storage convenience
- Crickets occasionally for variety, strike-response practice, or to break a feeding strike
This isn't compromise — it's better than either alone. Variety in feeders broadly improves reptile nutrition, and the two species fill complementary roles.
Common keeper mistakes
- Cricket-only diet: causes long-term calcium balance issues even with dusting
- Discoid-only diet: works nutritionally but underexposes reptiles to varied prey behaviors
- Buying too many crickets: 100 crickets is the right size order; 500 means you're eating mortality losses
- Storing discoids too cool: under 75°F dramatically slows reproduction; cold dies quickly
- Skipping calcium dusting on either: even discoids' better ratio doesn't replace the supplement
Bottom line
Discoid roaches are nutritionally superior, more practical to keep, less smelly, quieter, and longer-lived in storage than crickets. Crickets are cheaper, more available at retail, and trigger stronger feeding response. For most keepers, discoids should be the staple with crickets as occasional variety. Browse our discoid roach lineup or read more on feeder selection in our Creature Insights blog.
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