PlanetCatfish.com

I have two Mystus leucophasis available for $8 each and they are about 2 inches. Keep in mind they tend to get a little scrappy when they get bigger so either a larger tank is needed or keep them as singles.

judging by the state of the finnage, they're already a plenty scrappy to each other now.

you might want to separate em, and get them healthy before putting them on sale again.

selling damaged fish is risky; a wounded fish that gets caught, bagged and transported is prone to stress and the development of diseases.
it can "bomb" the tank of a customer and not just die itself, but wipe out the rest of the tank as well.

I've seen it happen many times, and experienced it a few times myself as well; bought a damaged fish "to save it" and ended up with losing a lot more than just the newcomer

because of this, selling damaged or sickly fish is not done

you wouldn't buy a wrecked car either, would you?