What Vegetables Can Hermit Crabs Eat? (+ What to Skip)
Hermit crabs can eat carrots, sweet potato, spinach, kale, broccoli, zucchini, corn, peas, bell peppers, cucumber, pumpkin, and squash. Most vegetables are safe and packed with vitamins. But two common kitchen staples are toxic to crabs. One popular green also needs to be rotated, not served every night.
What Are Hermit Crabs’ Favorite Vegetables?
Hermit crabs tend to prefer sweeter, softer vegetables. These are the ones most crabs go for first.
- Sweet potato. The top pick for most crabs. Sweet, soft when cooked, and rich in carotenoids and vitamin A. Steam or boil it first, since raw is too hard for most crabs.
- Carrots. Another carotenoid source. Slice thin or grate for easy eating. The green tops are fine too.
- Corn. Fresh corn on the cob is a big hit. Cut a small section and drop it in the tank. Unsalted, unbuttered popcorn is a safe snack.
- Spinach. Rich in vitamins and iron. It is high in oxalates, so rotate it with other greens.
- Pumpkin. Sweet, soft, and vitamin-rich. Crabs eat both the flesh and the seeds, which add healthy fats and protein.
- Broccoli. High in fiber and protein. Offer the florets and the leaves.
- Zucchini. Soft, mild, and easy to tear apart. Serve it raw or lightly cooked. It is high in water.
Which Vegetables Are Safe for Hermit Crabs?
| Leafy Greens | Root & Colorful Veg | Other Vegetables |
|---|---|---|
| Spinach | Carrots | Broccoli |
| Kale | Sweet potato | Cauliflower |
| Romaine lettuce | Pumpkin | Zucchini |
| Collard greens | Bell peppers | Corn |
| Dandelion greens | Beets | Peas |
| Watercress | Eggplant | Green beans |
| Swiss chard | Turnip | Asparagus |
| Bok choy | Radish | Squash (all types) |
| Boston lettuce | Cucumber |
Why Color Matters:
Choose brightly colored vegetables when you can. Orange, red, yellow, and dark green vegetables are rich in carotenoids. Many keepers report deeper color after molting on a carotenoid-rich diet. The evidence is mostly anecdotal, but the vegetables are healthy either way.
Which Vegetables Should Hermit Crabs Avoid?
Most vegetables are safe, but a few need to stay out of the tank. See the full list of foods hermit crabs cannot eat.
- Onions. Toxic to hermit crabs. This includes white, red, yellow, spring onions, and shallots.
- Garlic. Also toxic, including garlic powder.
- Iceberg lettuce. Not toxic, but almost no nutrition. Use romaine, kale, or spinach instead.
- Rhubarb. Contains oxalic acid at harmful levels. Skip it.
- Canned vegetables. Packed with added salt, preservatives, and sometimes sugar. Use fresh or frozen.
How Do You Serve Vegetables to Hermit Crabs?
- Wash with dechlorinated water. Tap water leaves chlorine behind. Choose organic produce to avoid pesticide traces.
- Cut into small, claw-sized pieces. Crabs have tiny mouths, so small pieces are easier to grab.
- Raw or lightly cooked both work. Steam hard vegetables like sweet potato, carrots, and broccoli for smaller crabs.
- Leave the skin on if the produce is organic or well washed. Skins carry extra fiber and nutrients.
- Serve in the evening. Crabs eat at night. Remove leftovers the next morning.
- Rotate daily. If they ignored spinach last night, try sweet potato tonight. Learn the full routine in our guide on how to feed hermit crabs.
Conclusion:
Hermit crabs can eat most vegetables safely. Sweet potato, carrots, corn, spinach, pumpkin, broccoli, and zucchini are the favorites. Choose colorful vegetables for the best nutrition. Skip onions, garlic, rhubarb, and canned vegetables. Wash everything, cut it small, and rotate your choices.
FAQs:
A: Yes, in small amounts. Tomatoes are acidic, so offer a small piece once or twice a week. Skip the leaves and stems.
A: Yes but cook them first. Never feed green or sprouted potatoes. Sweet potatoes are the better pick.
A: There is no fixed ratio. Protein should still make up most of each meal. Vegetables work alongside fruit and a steady calcium source like cuttlebone.
