Axolotls are carnivorous amphibians that “vacuum” food whole. A good feeding plan balances nutritional quality, safe food size, and clean husbandry (remove leftovers fast). Start simple with one reliable staple; once your animal is settled, add variety to round out nutrition and keep picky eaters interested.
What do axolotls eat?
Best staples are earthworms (nightcrawlers) and soft, sinking carnivore pellets. Youngsters also take daphnia and newly hatched brine shrimp. Adults can get occasional bloodworms/blackworms and other small invertebrates.
How much?
Offer pieces no wider than the mouth. Feed until the belly looks gently rounded, then stop. Remove uneaten food within a few minutes.
How often?
Larvae/very young juveniles: tiny meals 1–2× daily
Juveniles: daily (small meals)
Sub-adults: every other day
Adults: every 2–3 days (≈2–4 feedings/week)
Fasting tolerance (adults):
Healthy adults can manage a short fast up to ~2 weeks, but it isn’t ideal as routine. Resume normal feeding promptly and monitor body condition.
Why they’re great: Nutrient-dense, widely accepted, easy to portion; considered the gold-standard staple.
How to use: Rinse; cut smaller for small axolotls to avoid choking. Source pesticide-free (bait shops vary) or raise your own.
What to buy: Soft, sinking carnivore pellets suitable for amphibians/carnivorous fish. Popular choices include Hikari Sinking Carnivore or Hikari Cichlid Gold Sinking.
Tips: Target-feed with tongs so pellets don’t disappear into the substrate. Many keepers also use Repashy Grub Pie gel prepared to a soft consistency.
Bloodworms / blackworms: Great for juveniles; use as a supplement for adults.
Daphnia & newly hatched brine shrimp: Excellent for larvae/early juveniles.
Rotation: Mix items over time for a broader nutrient spread—after your axolotl is settled.
Earthworms: Top staple; cut to size for smaller animals.
Bloodworms: Best for juveniles; for adults, treat/supplement only.
Daphnia: Tiny “water fleas,” perfect for babies.
Blackworms / Tubifex worms: Nutrient-rich for juveniles; ensure clean source.
Ghost shrimp: Enrichment + food; axolotls enjoy the hunt.
Mosquito larvae: Excellent for babies (ensure safe, clean source).
Guppies (feeder fish): Quarantine at least 4 weeks and deworm to avoid parasites/disease. Even then, use sparingly; feeder fish can nip gills and are not nutrition-ideal.
Frozen bloodworms and frozen brine shrimp: Convenient, best for youngsters or as adult treats.
Pellets (see above): Balanced, convenient, great staple alongside earthworms.
Repashy Grub Pie (gel diet): Prepare soft; cut to mouth-size pieces.
Small pieces of raw fish (e.g., salmon, tilapia), shrimp/prawn, or mixed seafood, finely chopped.
Chicken liver/heart, beefheart: Rare treat only—trim fat and chop small. Mammalian meats are fatty and not ideal as routine food.
Hard-shelled insects (mealworms, superworms): Tough chitin can cause impaction.
Large feeder fish / aggressive fish: Can injure gills and introduce parasites.
Wild-caught insects/worms: Risk of parasites and pesticide exposure.
High-fat/processed meats: Poor long-term nutrition, potential liver issues.
Target-feeding: Use feeding tongs just above the substrate so your axolotl can “vacuum” the item without ingesting sand.
One bite = one piece: Axolotls swallow whole. Cut items to mouth width. If spit out, make the piece smaller.
Thaw safely: Thaw frozen foods in dechlorinated water; never microwave to boiling. Don’t refreeze leftovers.
Keep it clean: Remove uneaten food within minutes to protect water quality.
| Life stage | What to feed | Frequency | Notes |
|---|---|---|---|
| Larvae | Live micro-foods (daphnia, brine-shrimp nauplii) | 1–2× daily | Movement stimulates feeding; keep portions tiny. |
| Juveniles | Finely chopped earthworms; blood/blackworms; soft mini-pellets | Daily (small meals) | Transition steadily toward worms/pellets as growth allows. |
| Sub-adults | Earthworms + soft sinking pellets | Every other day | Watch body condition; adjust if getting pudgy/skinny. |
| Adults | Earthworms + pellets; occasional treats | Every 2–3 days | Most adults do well at 2–4 feeds/week. Remove leftovers. |
Portion guide: Feed until the abdomen is slightly rounded but not distended. If regurgitation occurs, you’re overfeeding or items are too large.
Short fasting can happen (travel, minor stress, seasonal dips). Healthy adults often resume within days; extended fasts up to ~2 weeks are possible but not ideal as routine.
If appetite suddenly drops: Check temperature, ammonia/nitrite/nitrate, and water flow. Bright light and tankmates can also stress axolotls. If refusal persists or you see weight loss, floating, ulcers, or redness, consult an exotics vet.
Earthworms: Choose pesticide-free or home-raised; rinse before feeding.
Live foods: Quarantine when possible; avoid collecting from natural waterways that may harbor parasites/contaminants.
Pellets: Soft, sinking, low-oil; store sealed and dry; replace if stale.
Feeder fish: If used at all, quarantine and deworm; still best considered an occasional item due to risks.
Spitting food repeatedly: Pieces are too large or texture is off—chop smaller or switch item.
Messy tank after feeding: Target-feed with tongs and remove leftovers promptly; consider a feeding dish.
Frequent floating after meals: Reduce portion size; check water quality; review diet (avoid very fatty foods).
Constipation/impaction risk: Never use gravel substrate; keep portions appropriate; prioritize worms/pellets over hard-shelled insects.
Start with a simple, consistent staple (earthworms or quality soft-sinking pellets). Once your axolotl is confident and eating well, add variety sensibly. Match portion and frequency to age and body condition, and keep the tank cool, clean, and low-flow. That combination keeps feeding easy—and axolotls thriving.
