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I am have great luck with my Corydoras duplicareus and Corydoras weitzmani spawning every few days and laying batches of ~12 good eggs at a time. My "good" problem is running out of tanks to raise groups of fry seperately. How bad is it to raise fry of different ages ~1 week apart together in same tank?
All comments, opinions, experiences welcome.

Pete

That should work ok. The 2wk fry shouldn't be able to eat a 1wk fry, or anything like that.

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Mats

They could out-compete each other, but T don't think 4 week fry would outcompete 3 week fry

in other words, perhaps you should not combine too young fry, but late on the age differences will fall away