oooooh, congrats devs!!!
As its the first spawn dont hold out much hope of them being successful with them, but its brilliant watching them though.
the plecs in the tank will eat the eggs, so you will either have to move the plecs or take your chances but the eggs wont last long with them there. The angels themselves will take about a foot around themselves and chase anything that goes near. The other two angels will learn to steer clear of them.
The thing with angels is, if theres no male then two females will pair up.
After a day some or all the eggs may turn white, these are the unfertilized ones and the parents will eat those. My own angels had about 80% that went white on the first spawn and then the male decided he would like some caviar
It takes about 72 hours for them to hatch i think, but another 5 days until free swimming.
The angels will look after the young but like i said they arent great as parents and it may take a few spawns for them to learn to get it right.
good luck with them Devs
Oh, and if the spawn fails then they can spawn again a month later!!