Egg Binding

Symptoms

Catching illness early gives the best chance of recovery, so check your fish daily. A persistently swollen abdomen in a female fish that cannot release her eggs, sometimes with lethargy and loss of appetite; seen in livebearers and egg-layers. Act promptly if you see several signs together.

Causes

A female becomes unable to release her eggs or fry, often due to lack of a mate or spawning trigger, stress, poor diet or being kept too cool. The underlying trigger is almost always stress, poor water quality or a newly introduced animal.

Treatment

Provide good conditions, a varied diet and (where relevant) a suitable mate and spawning sites; gentle warmth and stress reduction can help. Persistent cases may need a vet, as it can become serious.

While treating, increase aeration, remove activated carbon from the filter, finish the full course even after symptoms fade, and keep the water immaculate. Marine treatments belong in a separate quarantine tank, never the reef.

Prevention

Keep breeding females in good condition with proper diet, temperature and spawning opportunities to avoid retention. The golden rules: quarantine new arrivals, never overstock or overfeed, avoid sudden swings, and keep up regular water changes.

FAQ

This information is general guidance, not veterinary advice. Consult an aquatic vet for serious cases.