Cloudy aquarium water: what to check before treating it
Check the fish first, separate water colour from glass deposits, and use recent changes and measurements to guide the next step.
Troubleshooting
Start with cloudy water, unusual breathing, algae, reduced flow or a food spill. Observe and measure before choosing a response.
Fish gasping or breathing rapidly: an aquarium checklist
Respond to abnormal breathing with safe environmental checks, actual water tests and a clear record of changes and actions.
Aquarium algae: investigate light, inputs and regrowth
Separate green water from attached growth, review recent changes, and choose targeted maintenance without assuming a universal cure.
Aquarium filter flow has dropped or stopped: what to check
Follow the water path from intake to outlet, check model-specific priming and assembly, and verify water quality after restarting.
Too much fish food fell into the tank: what to do next
Remove visible food, check fish and filtration, track water quality and resume feeding according to the animals and conditions.