I added 4 Congo Tetras to my tank today and my small school of Rummynoses took immediate interest in them. Now I have one particular male Rummynose that looks to be trying to court the Congos!
He'll swim just below a Congo, tapping its belly with the top of his head. He'll do this for several minutes at a time before rejoining the other Rummies. Occasionally he'll even try to curl his body around the Congo as if getting ready to fertilize eggs.
The Congos are still young (under 2") so I'm not sure about sexing them, but the Rummy doesn't seem too particular as to which Congo he'll make advances towards.
There's no pecking or any other type of physical abuse (except for wearing the Congo out trying to get away from the Rummy). My school of Rummies seem to have at least two (or three) females so why the interest in inter-species romance?
Any insight in this matter would be greatly appreciated.
Bill

The Congos are still young (under 2") so I'm not sure about sexing them, but the Rummy doesn't seem too particular as to which Congo he'll make advances towards.
There's no pecking or any other type of physical abuse (except for wearing the Congo out trying to get away from the Rummy). My school of Rummies seem to have at least two (or three) females so why the interest in inter-species romance?
Any insight in this matter would be greatly appreciated.
Bill