Roshan Aquva World
SUBMERGING INTO ATLAS
Diving through species care sheets & parameters…
Pathology & Aquatic Medicine
Aquarium Fish Diseases & Treatments
Clinical profiles for common aquatic infections. Understand pathogen life cycles, clinical symptoms, and safe medication dosing protocols.
Pathogen Type:
Open Symptom Checker.png&w=3840&q=75)
Parasitic
Ich (White Spot Disease)
Ich (white spot disease) is a common freshwater parasitic disease caused by Ichthyophthirius multifiliis. It produces small white spots on the skin and fins and can also affect the gills. Heavy infections can be rapidly fatal if untreated.
Key Symptoms:
Small white spots resembling salt grains on the skin, fins, and eyes, Fish rubbing or scratching against rocks and decorations (flashing), Rapid breathing or gasping at the water surface
Read Pathology & Treatment Guide
.png&w=3840&q=75)
Parasitic
Velvet (Oodinium)
Velvet is a parasitic disease caused by dinoflagellates. In freshwater fish it is associated with Piscinoodinium, while marine velvet is caused by related Amyloodinium species. It can appear as fine yellow, gold, or rust-colored spots or a velvety film and can severely affect the gills.
Key Symptoms:
Fine dusty golden, yellow, or rust-colored film on the fish's body, Frequent scratching or flashing against decorations, Severe respiratory distress (gasping, rapid gill movement)
Read Pathology & Treatment Guide
Bacterial
Fin Rot
Fin rot describes progressive erosion or damage of the fins that is commonly associated with poor water quality, injury, stress, or secondary bacterial infection. Opportunistic microorganisms can colonize damaged tissue, and fungal or water-mold growth may occur secondarily.
Key Symptoms:
Fin edges turning white, red, or black, Fins appearing frayed, split, or ragged, Base of the fins showing red inflammation or rot moving toward the body
Read Pathology & Treatment Guide
Bacterial
Dropsy
Dropsy is not a specific disease but a clinical sign of abnormal fluid accumulation in a fish. It can be associated with kidney dysfunction, severe infection, or other serious systemic problems and may cause abdominal swelling and scales that protrude outward (pineconing).
Key Symptoms:
Severely bloated or swollen abdomen, Scales sticking out like a pinecone, Pop-eye (protruding eyes)
Read Pathology & Treatment Guide
Bacterial
Swim Bladder Disorder
Swim bladder disorder is a general term for abnormal buoyancy or swimming problems. The swim bladder helps regulate buoyancy, but similar signs can result from digestive problems, injury, infection, organ disease, or other conditions.
Key Symptoms:
Sinking to the bottom or floating uncontrollably at the surface, Swimming sideways, upside down, or at an odd angle, Swollen belly or curved back
Read Pathology & Treatment Guide
.png&w=3840&q=75)
Fungal
Cotton Wool Disease (Saprolegnia)
Cotton-wool disease commonly refers to an external water-mold infection such as Saprolegnia. It produces white, grey, or brown cotton-like growths on damaged skin, fins, eyes, or eggs and often develops after injury, parasite damage, or other stressors. Saprolegnia is an oomycete rather than a true fungus.
Key Symptoms:
White or grey cotton-like, fuzzy tufts on the skin or fins, Fungal growths forming around open wounds or sores, Clamped fins and scratching behavior
Read Pathology & Treatment Guide
DIAGNOSTIC PATHOLOGY & MEDICATIONS
Diagnose your fish symptoms
with interactive clinical tools.
Check off physical manifestations to identify fungal, parasitic, or bacterial root causes.