We’ve always got the question about betta fish getting sick! Now it’s time to answer!
“Is my fish sick?” (with photos of betta fish attached) is the most asked question. Most betta owners want to know how to identify a sick fish. Is it possible to tell if your fish is perfectly healthy or about to get sick? Of course! Today, you’ll learn how to spot if your fish is getting sick and how to treat properly.

There’re so many reasons why your fish gets sick. The most common betta diseases are fungal infections, white spots, and Columnaris. These diseases cause your fish to have clamped fins and struggle to swim. Their appearance looks unhealthy as they can’t even fan out their fins properly. Don’t leave it too long until they become badly infected. The diseases can damage their physical appearance. It is difficult to recover from the severe damage at that time. To prevent this, always keep an eye on your betta fish daily to see if they still look happy and healthy or not.


1. Remove cardboard placed against the outside of fish tanks and compare the suspect fish with other fish. As the betta fish fan out their finnage, it’s easier to pinpoint a sign of a problem. If you notice some fish have clamped fins or swim abnormally. They need immediate treatment! Remember, some diseases are contagious. Separate your infected betta fish. Also, don’t use the same equipment with other fish.

2. Don’t worry if you don’t have other fish to compare! Use a mirror to show your betta its reflection by placing the mirror behind or beside the fish tank. It may take some time for your fish to flare. Notice if the fish can’t fan out their fins properly or swims abnormally. If there’s a sign of sickness, get your fish the treatment as quickly as you can.

3. In some cases, white spots may occur on the fish’s body, fins, and tail. If your fish is covered with a cluster of white spots. The infection must be treated immediately.

4. Observe if other organs like eyes, mouth, head become swollen or with open wounds. If your betta fish has open wounds, it’s more likely to be infected by germs – spreading from the external to the internal.


All Symptoms can be treated properly with the following instruction

1. Change water in the fish tank immediately. Remove plants and stone before adding 1 liter of water. The decorative pieces are where germs and parasites live and grow. Plus, these are the spots where waste accumulates.

2. Add Tantanic, Aquatan, or Blue Tannic. Use 1 cc of the product for 1 liter of water. In case of using powder formula, use 1 spoon for 1 liter of water.

3. Add 1 cc of Cotrixide to treat externally and eliminate infections. Also, add 1 spoon of Power Treat to recover the sick fish internally.

4. Stir to mix all products and add the fish into the water. The medication and the water work correspondingly. Use the ratio as recommended.

5. Stop regular feeding in the first 3 days. The bowels of a sick fish won’t function normally. Feeding may cause other problems like bloating and constipation.

6. On the 4th day, start to feed your fish only a meal per day. As the bowels begin to recover, we recommend feeding them with small pallets mixed with Aminovita Plus. The fish will recover fast. Stop feeding live food as it may cause infections for your unhealthy fish.

7. On the 5th day, check if your fish is getting better. If it is, change 100% of the water and add medication to get rid of disease-causing microbes. No need to stop feeding this time. Repeat the same procedure 2-3 times every 5 days.

Our products are developed by the professional research team and experienced specialists including:
✳️Fishery Specialist
✳️Water Quality Specialist
✳️Environmental Specialist
✳️Animal Specialist
✳️Animal Nutritionist

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