I would be more concerned you are overfeeding/over compensating. These were established plants from another tank right? If you rub your finger on the plants or the inside of the glass, is it smooth or does it have a slippery film?
1 is a anubias petite, but the eclipse had twice as much anubias petite and a anubias fazeri or something like that, taller skinner anubias, and they would peck at it all the time without seeing any dead ones.