Can/do corydoras chew on fins?

[Lady Cougrrr]

After a disastrous experience with kuhli loaches in my betta tank, I'm nervous about adding even the seemingly gentle cories to my tank. My betta, Patches, has a habit of sleeping on the bottom of the tank. While he was napping, I caught the (well-fed) kuhli loaches in the act of sucking on and shredding his tails! His fins are now in shambles, I've given the kuhli's to a petstore, and now my poor ragged betta has gotten sick with ich!

Can/do corydoras ever chew on fins? Can they be nippy? Or are they truly as peaceful as they are made out to be? I can't find any information on whether they even have teeth or could be capable of inflicting damage on another fish.

 

[WhiteDevil]

My cories seem to be responsible for my fin issue with the betta, not sure yet gonna observe tonight with the lights off.

 

[HN1]

I've never seen any nipping from any species of cory. They are one fish that I would consider completely safe.

 

[beglely]

Yeah when I had corys they were probably the most passive species in the tank

 

[WhiteDevil]

I am trying one last thing before moving either the betta to a 10g or the cories, not sure which ones yet. I got some live plants today due to the fins and plastic plants. I am picking them up tonight, They are prepping them for immediate tank use for me for no extra charge( petsmart whoda thunk)
I think that the plants will be enough to keep the betta out of the way at night. I took out his favorite plants because they were slicing his fins. Everyone ive talked to tells me its not the cories, however I believe what I see more then I hear and I saw two of em taking on the betta.

Only solid advice I got was maybe they like the way his fins taste...I laughed but the convo went serious real quickly.

I also as ive said before am a firm believer in personality not species. I used to have a red devil that was a community and had another one that was all by himself cause he couldnt stop eating the other fish.

 

[Lady Cougrrr]

I appreciate the replies! I'll give some cories a try when my tank is clear of ich and see how it goes.

WhiteDevil, I had some problems with plants cutting my betta's fins, too. My brother learned a trick online and now I swear by it, too: take a pair of pantyhose and run it along the plants; if it snags the hose, it will snag a betta's fins. I test all my decor that way because I'm too intimidated yet to try real plants. Perhaps in the future...

 

[WhiteDevil]

Nah, Im just going to use live plants instead.


Im not even sure if its the cories or fin rot or neither. He flared on a serpae tonight and I saw ALL his fins, they arent tall but show new growth, Maybe he didnt flare big for me and it looked ragged? who knows, im not sure. I am gonna lower the temp tomorrow back to 78.