Just let nature process this.
one of my friends successfully breed a batch of cory even without noticing the eggs LOL. (She "surprisingly" found a bunch of babies one day :-))
I had corys lay eggs on the glass and then one of my female discus guarded them as her own lol. From that same spawn i ended up with 3x .5 inch juvies a month later when i cleaned out my canister filter. They must have gotten sucked in when they hatched because the eggs were right next to the canister intake, and grew over the next month down there
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