I recently added a Gold Marble Ghost Pearlscale about 2 days ago..I was gone for most of the day and just got home not that long ago. Before I left, my old female was pecking my filter intake...I check my fish a lot, now my angels pawn.. I wasn't expecting that.
Well, congrats! It may be your "big girl" was just happy to have another angel. Hopefully your new 1 is a male & figures out what to do since "he's" a little small & probably inexperienced. We had 2 females that laid eggs regularly, taking turns then eating the eggs. We introduced a young male & flirt as he might, they were set in their ways. If you really want to raise any fry you'll need another tank, it's not a community tank process. But if you don't care all that much (raising babies can be a PITA), just enjoy their behavior & nice fresh food for everyone. They can be aggressive to tankmates so be aware & maybe add some décor, plants etc, & hope for a happy tank. None of your fish probably inhabit the same area as the angels but everyone likes eggs!
The smaller angel is a young male. Most of my fish are bottom dwellers.. The angels chase off the rams and tetras. The male fans the eggs for awhile then my old female. I am getting a 20L in a few weeks and emptying out my 10g.. I'm getting a sponge filter for the ten and turning it into a Q/T and maybe a fry tank.. Not sure.
As I type, my big female is not pecking at my plants... Also I have tons of rocks and hiding spots.