hi
i have some fish from a neglected pond of a family friend. 6 in total. all the others were suprisingly fine and have been intergrated into my pond but i have one that has fleshy spots on body, its fins appear to almost be gone and it has a massive white clump around its gills. i have had it quarantined for a couple of weeks and have treated with anti-bacterial treatments. but it appears to have done nothing. it is swimming fine and eating, but have no idea if it can be treated or not nay help would be great.