API Bettafix
Use when adding fish to an aquarium. Ideal for transition from store to home.
- Directions: Add 9 drops per pint, or 18 drops per quart of aquarium water.
- For larger bowls or aquariums, add 1/2 tsp per US gallon of water.
- Repeat dose daily for up to 7 days, then make a water change.
- For tropical fish use only.
Usage Instructions
Shake well. Use dosing cap on bottle: remove activated carbon if possible. Dose: 5 ml per 10 gallons (38 L) of aquarium water. Once daily for 7 days. Can be repeated if necessary.
| Water Volume | Recommended Dose |
|---|---|
| 1 pint | 9 drops |
| 1 quart | 18 drops |
| 1 US gallon | 1/2 tsp |
| 10 gallons | 5 ml |
FAQ
Can API Bettafix be used for fish other than tropical fish?
No, API Bettafix is for use with tropical fish only.
How often should API Bettafix be administered?
Once daily for up to 7 days, then follow with a water change.
Is activated carbon required in the bottle?
Remove activated carbon if possible before use.

Abigail North –
I used API Bettafix when introducing my betta to a new tank. The water transition was smooth and my fish didn’t show any stress signs. It worked well with the recommended dosage and made the move easier.
Sam Ball –
The instructions were clear and the product helped stabilize the water chemistry. I followed the daily dose for 7 days and then did a water change. My fish adapted quickly.
Madeleine Blake –
Great product for new aquarium setups. My betta stayed calm after the transition. I used the 5 ml per 10 gallons dose and it matched the drop-based instructions well.