Petco Text Logo
Petco Pet Logo

Help! My betta fish is bloated but still active. What should I do?

Updated On September 23rd, 2025

My beta fish is bloated and has been for weeks. He is still active as usual, doesn't sink to the bottom and his fin and tails still the same. He seems to have an appetite, gets really active when I come by at dinner time but I have been fasting him. I am feeding a little now, little pellets, smaller than what he has been eating. I tried peas but doesn't like them. Besides being really bloated he is the same. Any ideas what I can do? I sent this question yesterday but did not receive an answer.

This question includes photos that may contain sensitive content. Click to view.

View more to consider that the photos may include sensitive content.

1 Answer

Most Helpful Answer

Image profile

Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

Veterinarian

Published on March 21st, 2018

That, as you probably already suspected, could be due to an overinflated swimbladder, but as well enlarged abdominal organs could be possibly the cause of it (polycystic kidneys are fairly common as well). Unfortunately you already tried a first line approach (feeding peas for example) and did not work, so the next step,a part from water quality check, is to have your fish checked by your local veterinarian. A radiograph can easily confirm clinical suspicion and lead to appropriate treatment. Water testing should be performed with a quality test kit, measuring NH4, NO2 and NO3. High ammonia levels, PH imbalances may be responsible for these signs. Oxygen concentration and quality of the filters should be determined as well. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.

Vote icon

1Pet Parents found this answer helpful

image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Sponsored