$12.99
See if it's really the one
Search with this product to compare it, find similar styles, or turn up something better before deciding.
Methylene blue is an effective aid to general disease prevention, and may be used for the detoxification of fish suffering from nitrate or cyanide poisoning. Also for use as a prophylaxis against fungus infections of fish spawns. Because methylene blue can be toxic to plants and harmful to biological filtration systems, all treatment should be carried out in a separate hospital tank or other suitable container.
Have a question about this?
We currently ship within the US, with more countries coming soon.
Final cost and dates are confirmed at checkout.
🇺🇸 Ship from USA · On Agora since 2025
$12.99