My alligator gar has two giant lumps on its side

[JIGENGIRI062779]

Have you tested your water?

No

If I did not test my water...

1. ...I recognize that I will likely be asked to do a test, and that water tests are critical for solving freshwater health problems.

Do you do water changes?

Yes

What percentage of water do you change?

21-30%

How frequently do you change your water?

Every two weeks

If I do not change my water...

1. ...I recognize that I will likely be recommended to do a water change, and water changes are critical for preventing future freshwater health problems.

I've had him for about 2months he is 6 inches. He was in a pond before and i discovered that he had these two large lumps on the side of his body so i decided to move him to the 100 gallon aquarium so i can monitor him better although i dont know what the giant lump is and how to treat it. Can anyone please tell me what it is and how to treat it?

 

[JIGENGIRI062779]

Here are more pictures

 

[JIGENGIRI062779]

Tank size:
Im not sure if its 100 galons but its 5ft long and 2feet wide

 

[Caveden]

Tumour?

 

[JIGENGIRI062779]

Tumour?

Im not sure because i only noticed it like 3days ago

 

[kno4te]

Tumour?

Could be a tumor or some type of growth.

 

[JIGENGIRI062779]

Could be a tumor or some type of growth.

Can it harm the fish?

 

[Carlos ser]

Can Someone tell if this a tumor on my Florida gar