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| Treats | Bacterial infections (broad spectrum) |
| Use In | QT tank, hospital tank |
The first-line broad-spectrum antibiotic when something is clearly wrong but you cannot identify the specific bacteria. Fin rot, mouth rot, body ulcers, gill issues — Antibiotic Duo Flake combines two antibiotics to cover both gram-positive and gram-negative bacteria at once, delivered through food so a still-eating fish does not need a chemical bath.
Combination antibiotic flake (sulfa + nitrofuran pairing). Fed as sole food source for 5-10 days. Does not affect biological filtration like water-column antibiotics do — the medication stays in the gut, not the tank water. For exact feed schedule, see the Antibiotics tab on our Medication Dosing Calculator.
Treats: fin rot, mouth rot, body ulcers, columnaris, secondary bacterial infections.
Use in: quarantine, hospital tank, or display — fish must be actively eating.
Reef safe: yes — antibiotic stays in gut, not water.
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All medications sold by FisHotel are intended exclusively for ornamental aquarium fish. They are not for human consumption, not for food-producing animals, and not for use in any tank stocked with fish intended for human consumption. By proceeding, you acknowledge that you are purchasing these medications for ornamental aquarium use only, that you understand proper dosing and handling, and that you accept full responsibility for safe application.
