Mayhaps but they seem to be killers. Their method seems to be to swarm a fish and clamp on keeping the gill covers closed effectively keeping the fish from breathing. First time I saw this was with a small pleco and I thought that the corys were just hovering but, on hind sight, it now seems that they were attacking. They cover the fish and kill from lack of oxygen. Can't prove but that is how it looks. Bad picture but all I have...
I’m not great with corys but looks to be a variety of bronzed to me or maybe peppered , I struggling to accept they swarmed and killed a fish , iv kept corys with tiny fry and bladder snails before and they don’t seem to have the genetics for any kind of agression , the swarming could easily be there mating dance I like to call it normally a few males follow a female in a strange display making a t shape while fertilising eggsWhat ARE these monsters!??! They just swarmed and killed one of my black skirt tetras. They are like killer bees. I NEVER should have bought any fish from Petco! They were sold as miniature corys which I took as probably pygmies. They are vicious and I'm about ready to catch and flush. I know that they have swarmed and killed an albino cory and a black skirt. My best guess it that they also took down Dusty.
When I pulled all the plastic plants and the tree trunk I did a good vacuum. I pulled up a lot of white stringy stuff. Kind of looked like stringy meat. My guess is that it was Dusty's remains...
What IS this demon?!?
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I don't get it either but I actually saw the corys go after the black skirt tetra. I've always considered them to be about the most peaceful critters you could have but there was no mistaking the attack.
