Why Is My Axolotl Not Growing?

Axolotl growth issues are common but solvable. Many axolotl owners become frustrated when their pet doesn’t seem to be growing at a normal rate. This article will identify the most common reasons for stunted axolotl growth and provide actionable solutions to get your axolotl back on track. By following the tips in this guide, axolotl owners will be empowered to diagnose and address growth problems.

2 Main Reasons

Improper Diet

The most common reason for an axolotl to not grow properly is an inappropriate or inadequate diet. Axolotls are carnivores and need a diet high in proteins, vitamins and minerals to support healthy development. Feeding an improper diet lacking in these nutrients can lead to stunted or uneven growth.

It’s important to feed axolotl pellets specifically formulated for axolotls as the main part of their diet. These pellets are designed to provide complete, balanced nutrition tailored to axolotls’ needs. Unlike treats or other foods, they contain the right proportions of proteins, fats, vitamins and minerals axolotls require for growth.

Supplementing an axolotl’s diet with treats like worms can provide additional proteins. But an axolotl’s primary nutrition should come from a high-quality pellet to ensure they get all the nutrients they need. Relying too heavily on treats or table foods won’t provide balanced nutrition.

Axolotl growth requires the right balance of nutrients, not just protein. Feeding too much of one type of food means they’ll miss out on others. Variety is good, but make sure the staple is a complete axolotl pellet. This helps ensure proper growth and development.



Various illnesses can also result in an axolotl failing to grow or even losing size and weight after a time of normal development. Some examples include:

  • Fungal infections – Can cause appetite loss and damage to tissues.
  • Bacterial infections – Prevent proper nutrient absorption.
  • Parasites – Compete for nutrients.
  • Vitamin deficiencies – Lead to metabolic issues.
  • Intestinal blockages – Make eating difficult.

Sick axolotls often lose interest in eating, or eat less even if food is offered. Any ongoing sickness diverts an axolotl’s energy away from growth and towards trying to fight off the illness. Proper diagnosis and treatment of any diseases by an exotic vet is key to getting the axolotl back on track to regain and sustain normal growth patterns. Preventative care like quarantining new axolotls can help avoid introducing illnesses.


An improper diet lacking complete nutrition is the most common reason for axolotls to stop growing. Illnesses like fungal infections and parasites can also inhibit growth by reducing appetite and nutrient absorption. Feeding a balanced pellet diet specifically formulated for axolotls will provide the proteins, vitamins and minerals they need for proper development. And getting help from an exotic vet to diagnose and treat any diseases will get the axolotl back to growing. With the right nutritional support and prompt treatment of illnesses, axolotl growth issues can be successfully addressed. Targeted troubleshooting and adjusted care focused on diet and disease prevention are key to helping axolotls reach their full growth potential.

About The Author

Ellie McDaniel is an experienced aquarium pet owner, whose expertise infuses her informative articles. She shares her deep understanding of aquatic pets, their care, and maintenance through engaging and insightful writings.

Ellie’s knowledge and passion for aquarium pets shine through her articles, providing an invaluable guide for fellow enthusiasts. Her practical experience resonates with readers, making her a trusted resource in the diverse world of aquarium pet care.