When something goes wrong, begin with the symptom and the basic safety checks. If fish show distress, circulation has stopped, or equipment is leaking near electricity, deal with the immediate hazard first. The guides below help narrow down a cause without guessing from one symptom.
Start with a whole-system check
Check power, pump operation, flow, aeration, water level, and fish behavior before pursuing more specialized explanations.
Water clarity and algae
Separate cosmetic cloudiness from water-quality or filtration problems; identify conditions favoring algae.
Pump, siphon and leak problems
Work through circulation, drainage, siphon behavior, and leaks with the relevant component guide.
Fish problems
Unexpected changes in fish behavior call for water and oxygen checks alongside observation of the fish.
- Fish Stress and Health Troubleshooting
- Signs of Healthy and Unhealthy Fish
- What to Do When a Fish Dies
Plant problems
Troubleshoot stalled growth and pests without assuming a nutrient deficiency is the only explanation.
Protecting the system
Physical protection can help prevent damage and contamination from animals and insects.
Explore related topics
These sections connect to other parts of operating a backyard aquaponics system.