I bought a large sword plant yesterday with mostly large green leaves and a few of them were different in colour, with a purpleish colour and dark veins. I think these are newer leaves, as there are tiny leaves similar in colour starting to grow from the main stem.
Today I wake up and find that only those leaves have been chewed up, with holes everywhere. Here's a pic
Why are only those leaves being eaten and who's the culprit? Stocking list:
Clown and bristlenose plecos
Siamese Algae Eaters
I've never had problems with my other plants being eaten by these fish before. Why are only those purpleish leaves being eaten? How can I ensure this plant can grow without having all of its new leaves eaten?