My albino cories have spawn loads,
I don't feed them anything special(they won't eat anything but algae wafers and flakes), I haven't had to do water changes for it to happen(this can help), just let nature take its course, when they are ready it'll happen,
I've just hatched another 50 eggs 3 days ago, I tried loads before to get them to spawn, nothing really helped, so I got annoyed, and thought sod it I'll leave them (obviously do the normal things water changes and the like) if they don't want to spawn, then about 2 months later I had eggs.
It could easily be that they are to young or just dot feel like it, just keep an eye out, they will spawn when they want to
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