Not sure about the rotala but I had a bristlenose that did a number on my swords, anubias, etc. anything with broad leaves. Make sure yours is well fed, maybe add some zucchini, lettuce or spinach as a food supplement.
My money is on these guys. The one's in my 75 put holes in my Nymphodies sp. Taiwan., all the time.yo yo loaches, botia kubotai
I had some of that but it was completely riddled with holes, definitely from the loaches.My money is on these guys. The one's in my 75 put holes in my Nymphodies sp. Taiwan., all the time.