Fish ER

Sick fish? Fish ER

Tap what you see. We will suggest likely diagnoses, look-alikes, first aid, and real medications - fun, calm, and not a substitute for a fish vet.

Not a vet. Fish ER is a first-aid guide for common aquarium problems. When in doubt, ask a fish-savvy store or an aquatic veterinarian. Medication labels and local laws win.

Step 1

What do you see?

Tap every symptom that fits. You can pick more than one.

Search symptoms

Step 2

Or jump to a disease

Quick FAQ

Is Fish ER a diagnosis?

No. It is a guided first-aid helper. A fish vet or experienced store can confirm.

Should I medicate the whole tank?

Many parasites need whole-tank treatment. Always read the label and remove carbon if directed.

What is HLLE?

Hole in the head / lateral line erosion. Oscars and discus are famous for it. Diet and water quality matter a lot.