05-15-2011, 08:56 AM
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Originally Posted by Thoth
The cory eggs have a lot of things going against them. They will be eaten by fish in the tank including other cories even in heavily planted tanks; I have not seen the females laying eggs eat them but I have seen rival males pigging out. The eggs are typically laid in groups of 4 to 8 at a time in close proximity on the glass, filter, heater or decorations( plants). Unfertilized eggs will be attacked by fungus, which can spread to near by fertilized eggs causing them to be killed. The same fungus will also attack the fertilize egg, so there will be lose of them as well. If you do not help the eggs in any way, you are looking at a 10% to 20% hatching, include predation by other fish and it is realistic to have 2 cories survive out of 100 eggs laid. But still... pretty sweet. ;)
Ugh! With that info, I might be part of the problem in the Cory department. I saw a bunch of eggs behind the sponge filter and thought it ramshorns. I took my magnet cleaner to them. I have far too many of the stinking ramshorns in that tank yet. I am excited about my 2 babies. There might be more yet but that is all I saw thus far. Hopefully they do not start breeding out of hand now. That tank is full enough. At least they would be easier to sell.