Lungfish missing fin?

Hi guys, new here to the mfk forums and I have a question about a lungfish I recently picked up. I have searched and searched with no answers, so my apologies if this is a stupid or obvious question.




I have, i believe, correctly id'd this as a west african (P. annectens). My question is concerning the filamentous fins...this specimen is missing its front left one. I know these are used for movement along the bottom, although he seems to be doing great without it, it is still a concern.

Will it grow back on its own? I know they are sensitive to medications as well, so is there anything I could or should be doing to help?

Sorry the pics suck, best i could get of him so far. Thought they might help someone confirm the id for me as well!

Thanks in advance.

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cool, thanks for the info guys. Any idea about my id as a WAL? Concerned about his tankmates after further research. Which are (if your curious):
2- florida gar
2- green severum
1- fire eel (about the same length as the lungfish pitured)
1- venustus(sp) cichlid
1- albino channel catfish
1- small RTC

All are too large to fit in the lungfish's mouth except the venustus, and the fire eel's head is small enough to be crushed from a bite i believe. He was with tankmates at the LFS i purchased him from, and he seems very docile with them so far. I know it probably wont last, so he will be relocated to a personal tank soon.

Thanks for the confirm joel. Was hoping i was wrong :/

He has had a run in with my fire eel and RTC both trying to nab a worm from his mouth. He is being friendly for now, really hoping he doesn't take anything out before i can get him moved.