hi
just thought ide let you know what i did with my angel eggs,as soon as my pair laid eggs i thought it would be best to leave them,bad idea ,no the parents didn,t eat them but as soon as they became free swimming i lost almost all of them down the gravel,there so tiny you couldn,t almost see them there even smaller than danio babies ,anyway,as soon as they laid eggs i cut the leaf with the eggs off and placed them in a jug in the same tank and moved them on to a smaller tank,making sure that the eggs never came out of the water and the jug should then be emptied in to the smaller tank,and keep the water well airated,as soon as you see wigglers still stuck to the leaf after a couple of days,you should get some liquifry ready, theres no need to feed at this point as they still feed of the yolk sac,as soon as you see free swimmers drop in the liquifry,after a week or 2 start feeding on brine shrimps at least five times a day and regular water changes,and you should soon starting seeing good growth .but make sure you filter is a sponge filter so the babies dont get sucked up, angel fish dont like strong current so make sure your filter isn,t to strong,and put some tights over the filter with a elastic band so the weaker ones wont also get sucked up,i bred angel fish for a year with a spawning every 3 weeks and had almost perfect results, pm me if you need any other advice
thanks
and good luck