How Long Till Eggs Hatch ?

I have a pair of Black Convicts where the female has laid eggs
on the inside of a hollowed out rock, how long until the eggs hatch ?

Also, should the fry be transported to another tank ?

They are in a 55 gallon tank with an adult Red Devil and an algae eater.

I have a pair of Black Convicts where the female has laid eggs
on the inside of a hollowed out rock, how long until the eggs hatch ?

Also, should the fry be transported to another tank ?

They are in a 55 gallon tank with an adult Red Devil and an algae eater.

2-4 days depending on temperature. Another 4-6 days till they're
free swimming. You'll have a busy tank once they come out.
Momma will take on that Red Devil to keep it away from the 'kids'
I've had a couple of 'feeder' sized convicts spawn in a 125 with
other 8-12" fish, and the convicts managed to raise over a dozen!
It was a pain catching and getting them out! .. Convicts are too
good at parenting! ..

Bob