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If the lump is covered with scales, and the scales are a continuation of their normal scales / skin(?) then it is probably a tumor. It is easiest to check this by using a torch to directly shine light on the lump, but please don't shine it in their eyes! If it is not covered with scales, then it is likely to be an external parasite.
It is quite possible for Bettas to live a long-ish and happy life with a tumor, but sometimes the tumor affects more of their body than you can see, and they pass away.
Tumors are very common with Bettas, due to inbreeding and hormone therapy when they are young to make them grow quicker, to make more money.
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∙ 12y ago
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What happens if your Betta fish has a ball on it's neck?
I'm terribly sorry to tell you this, but it might be a tumor. :( bettas live 1-2 years, so it might be getting older which causes it to get a tumor. it may not be a tumor, and not all tumors are cancer. good luck all the best, Fishlover
How do you tell a girl betta fish from a boy betta fish?
It's all in the tail. the males is larger and longer and the females is shorter.
How do you tell how old a betta fish is?
the size of it's fins and body
Do girl betta fish make bubbles to tell you they are happy?
ya
What preys on betta fish?
other Betta fish and the bigger fish.
How many fish can a betta eat?
Betta fish do not eat fish.
Are Betta Fish omnivores?
No betta fish are carnivores.
What if your betta fish seems to have developed a tumor Is there anything you can do for him He is in a five gallon tank but it seems the tumor is getting heavy and he is having trouble swimming?
Place a tablespoon of salt in the tank make sure the water is clean
What Can kill a betta fish other than a betta fish?
Well, if you love your Betta fish, then it should live by itself. But if you add another Betta to your current Betta fish's tank, then they will start a fight because Betta Fish are Siamese fighting fish and if one Betta is in contact of another Betta, the possible reason would be a fight between them two.
What is a betta?
A betta is a fish of the species Betta, especially Betta splendens, commonly known as the Siamese fighting fish.
How can you tell if it is a baby betta fish?
You would surely be aware if Bettas have been spawing in your tank. If they have, and nothing else has been spawning in there, then in all probablility the tiny fish you can see will be Betta.
Can boy betta fish be with a boy betta fish?
yes
