What do baby axolotls eat?

Newly hatched axolotls eat live baby brine shrimp (artemia nauplii) for the first 2-4 weeks. At 2 months, they can transition to chopped bloodworms and micro pellets. By 4-5 months, they can eat small earthworm pieces.

Do baby axolotls need a filter?

Gentle filtration is recommended but not essential if you perform daily water changes. A small sponge filter on the lowest setting works well. Strong flow will exhaust baby axolotls.

Why do baby axolotls eat each other?

Baby axolotls are cannibalistic by instinct. They snap at anything that moves near their mouth, including siblings' limbs and gills. Separating by size and feeding frequently reduces cannibalism but does not eliminate it entirely.

Baby Axolotl Care: From Eggs to Juvenile

Raising baby axolotls (larvae) is one of the most rewarding but demanding aspects of axolotl keeping. The first few months require daily attention, specific food sources, and careful management.

The First 48 Hours

Newly hatched axolotls are tiny, about 1 cm (0.4 inches) long. For the first 24-48 hours, they absorb their yolk sac and do not need any food. During this time:

Keep them in clean, cool water (16-18°C)
Avoid any water flow
Do not disturb them
Provide something to attach to (plant leaves, mesh)

Feeding Stages

Week 1-4: Live Baby Brine Shrimp

Newly hatched artemia nauplii (baby brine shrimp) are the ideal first food. They are:

Small enough for tiny mouths
Live and moving (triggers the feeding response)
Nutritious and easy to hatch at home

Hatch brine shrimp daily using a hatchery with salt water and aeration. Feed 2 times per day, offering as much as the babies will eat in 15-20 minutes.

Alternative: live daphnia (water fleas) also work well.

Month 2-3: Transition Food

At about 2 cm in length, babies can start eating:

Chopped frozen bloodworms (thawed)
Micro pellets (crushed into small pieces)
Small blackworms

Offer food daily, once or twice.

Month 4-6: Juvenile Diet

Once they reach 5-8 cm, juveniles can eat:

Small earthworm pieces
Regular-sized pellets
Whole bloodworms

Feed daily until 6 months old, then transition to the adult feeding schedule.

Housing Baby Axolotls

Individual containers are ideal for the first 4-8 weeks:

Small plastic tubs (1-2 liters each)
100% daily water changes
No substrate, no filter needed at this size
Keep water cool (16-18°C)

Why separate? Baby axolotls are cannibalistic. Size differences as small as 1-2 cm can result in larger babies biting the limbs and gills of smaller ones. While axolotls can regenerate, repeated injury is stressful and can be fatal for very young larvae.

At 4-8 weeks, similar-sized babies can be grouped in larger containers or bare-bottom tanks with gentle sponge filtration.

Growth Milestones

Week	Size	Key Milestone
0	1 cm	Hatching, yolk absorption
1	1.2 cm	First feeding (brine shrimp)
2	1.5-2 cm	Front legs begin developing
4	2-3 cm	All four legs visible
6	3-4 cm	Can eat bloodworms
8	4-5 cm	Can be grouped by size
12	6-8 cm	Can eat small earthworm pieces
16	8-12 cm	Approaching juvenile stage
24	12-17 cm	Transition to adult feeding schedule

Common Problems

Cannibalism

Solution: separate by size groups, feed frequently, provide visual barriers between individuals.

Curled Gills

Cause: usually poor water quality in small containers. Solution: more frequent water changes, ensure water is dechlorinated and temperature-matched.

Refusal to Eat

Cause: water too warm, brine shrimp not fresh enough, or the baby has just absorbed its yolk sac. Solution: ensure water is 16-18°C, hatch fresh brine shrimp, wait 48 hours after hatching before first feeding attempt.

Planning for Hundreds of Babies

A single breeding event can produce 200-600 viable eggs. You need to plan for:

Space: dozens of individual containers or several grow-out tanks
Brine shrimp: daily hatching for weeks
Time: daily water changes and feeding for 2-3 months minimum
Rehoming: start finding homes for juveniles early. Post on axolotl forums and local pet groups when babies reach 5-8 cm.