Yours were C. aeneus, weren't they? If so, you have a good chance of them spawning again soon. Why not set up a small breeding tank and move the corys into it? Then, after they spawn, you can move them back, clean out the gravel, etc. and let the eggs hatch right there.
I always lose a lot of them whenever I have to move them. They are delicate and it's so very easy to damage them just by touching them.
Would being moved not upset them and put them off spawning again? They're used to a planted tank with bogwood and gravel - we did think of moving them, but thought it'd put them off spawning...
hi ive just had a batch of albinio cory eggs, most of them did not have fungi on them but the ones that did i took out straight away, i still have about 100 fry and all healthy, sorry about your loss but keep trying and you will succeed