Treating an Injured Goldfish with Algae Growth on Wound

Cat Attack Leaves Goldfish Blind and Algae-Covered

A large goldfish (8 inches) lost scales and an eye during spawning when attacked by a cat. The fish is eating and not bullied, but green algae is growing on the injured side like a "green rug." The owner has used antibiotics and 25% water changes twice.

Recommended Treatment

Tom suggests adding Stressguard (available at water garden nurseries) to help heal and restore the fish's natural slime coat, which protects against infection. Continue monitoring water quality and avoid further stress. The algae on the wound is a symptom of the damaged tissue; improving the fish's healing ability is the priority.

Additional Care Tips

• Maintain pristine water with regular partial changes.
• Ensure the fish has hiding places to reduce stress.
• Watch for signs of secondary infection (redness, swelling).
• Consider a separate hospital tank if condition worsens.

With supportive care, many fish recover from significant injuries.