What are frog-friendly meds that would help on betta fin rot?

[Emily in Everett]

Issue: planted 5 gal tank with betta and african frogs. Betta's fins have suddenly started to degrade, suggesting fin rot (no obvious discoloration of edges but tissue between the rays is "melting back". We've had this with previous bettas and medication has stopped the melt and fins grew back. But those were betta-only tanks without frogs.

Question: what are medications I could use for the betta that would not be poisonous to frogs? I could of course move to a quarantine tank but it's already a small tank and would prefer to limit stress on fish if there's any way to maintain it in the current environment.

[Tihshho]

On 5/4/2022 at 12:56 PM, Tihshho said:

Are you able to pull the betta and treat it in a QT tank? You might be able to use more effective medication rather than find something that is safe with other tank mates.

Quoting my post from your other thread on the same topic in General. 

[laritheloud]

Agree with @Tihshho. Amphibian skin is extremely sensitive; it absorbs everything that it comes into contact with, pretty much. I wouldn't risk applying meds to the frogs and move the betta to its own quarantine tank for treatment.

[NormsAquatics]

Be careful about meds with copper in them. It's not good for plants, amphibians, shrimp and many other animals though it is ok for fish.