It’s advisable to soak dried foods (such as pellets) before feeding, because some of these items may expand in the betta’s stomach when dry.
Use a small net that you would use to scoop out excrement or transfer the fish to another container.
It takes a betta about two weeks to starve to death, so if your fish doesn’t eat for a few days due to illness or adjusting to a new home, don’t panic. But you obviously should not test the limits of how long a betta can go without food!
You can change up the type of food as often as you’d like. Try to feed the betta at least one type of food that is different from what you normally feed it at least once a week.
Live tubifex often carry parasites or bacteria, so they should be avoided. The best live worms to use are white worms, grindal worms, and black worms. These worms are available at most major pet stores.
These insects will be available at most pet stores. Flightless fruit flies are often sold live in jars for reptile use but are also useful for feeding fish. To serve the flies, shake some into a plastic bag and place in the freezer for a few minutes. This will slow down the insects. Then, quickly pour the flies into the tank. Scoop out any that are not eaten.
Beef heart and rich meats can dirty the tank with oils and proteins, so this should be a rarer treat.
These pellet foods absorb water and expand in the fish’s stomach to 2 or 3 times their original size. Some bettas will have bad reactions, potentially developing problems with constipation or bladder disorders.
Do not overfeed your betta and cut its portion if you notice abdominal bloating. You may want to switch to live foods if your betta is consistently bloated.
Overfeeding can also lead harm the water quality and cause obesity. [11] X Research source
