I read that other MFKr's had clown loaches, and a few days ago someone posted about aro's not bugging them because of their spines. Well, my aro had just munched a new clown loach, so today I bought a 4" clown loach, eyeballed it, and said no way man, he won't eat this one! He didn't mind crickets or neons but before I could even get my money's worth, that loach was gone and the aro is all FAT and happy. Less than 2 minutes. (17" aro)