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Common Reasons a Silver Arowana Stops Eating
Silver arowana may refuse food due to a new environment, low temperature, poor digestion, or low oxygen. Match each cause to the right fix.
What to Do When a Silver Arowana Won’t Eat
If a silver arowana won't eat, first check for fright, low temperature, dirty water, or illness, then apply the matching fix. Most cases recover with calm, warm, clean water.
Common Factors That Make Arowana Sick
An arowana's health is closely tied to how it is kept. Poor feeding, fright, bad water changes, fighting, external infection, and overall poor water quality are the main triggers of illness. The single most important preventive measure is stable, clean water—use a filter and change water on a schedule.
Common Arowana Skin Diseases and Their Prevention
Common arowana skin diseases include scale melting, slime-coat shedding, and fin/tail rot—most stemming from poor water quality. Improve water and add aquarium vitamins for scale melting; use Japanese yellow powder for slime-coat loss; and rely on the 'old three' (heat, salt, water change) or medication for fin/tail rot.
Why Do Arowana Refuse to Eat?
Arowana may refuse food for many reasons—poor water quality, fright, temperature swings, environmental change, illness, improper feeding, or internal parasites. If the fish is otherwise active, refusal alone isn't alarming. Key fixes: stabilize pH (6–7.5), avoid sudden changes, and treat any underlying disease.
Symptoms and Treatment of Arowana Pinecone Disease
Arowana pinecone disease (raised scales), also called 'arowana cold,' is often triggered by large temperature swings during seasonal changes. Early signs are darkening, rough skin, and scales protruding outward; severe cases show swollen scale sacs with bloody fluid and ascites. Treatment starts with raising the temperature 1–2°C, adding salt (0.6–1%), and partial water changes; medication is added if no improvement.
Why Do Arowana Get White Spot Disease?
Arowana white spot disease (Ich) usually appears during seasonal changes when temperature fluctuates. The parasite—an Ich ciliate—thrives in low temperatures and dies in heat, so keeping the water temperature stable (26–33°C) is the key to prevention. Treatment is primarily raising the temperature by 2–3°C with aquarium salt and partial water changes.
Why Do Arowana Develop Dropsy?
Arowana dropsy is common during seasonal changes and is caused by prolonged high temperatures, poor or aged water, high organic loads, or bacterial infection. Symptoms range from blisters on the gill cover (usually non-fatal) to full-body blisters with severe infection and ulceration. Prevention centers on stable temperature and clean water; treatment uses antibacterial medication in food plus strict water management.
What fish can be mixed with the star-spotted arowana?
It can mix with oscars, blood parrots, Siamese tigers, peacock bass, and stingrays. As a top-dwelling fish with strong territory sense, pair with mid- and bottom-dwellers to avoid fights; avoid large size gaps and control density to prevent bullying and territory fights.
Why is the star-spotted arowana so cheap?
The star-spotted arowana is a cheaper arowana because its ornamental value is lower-neither as majestic as the golden arowana nor as festive as the red. It is also slim and aggressive, so its price is much lower; next to other arowanas it pales, hence the lower price.