Majestic Shelters will eat almost anything. They look like peaceful community fish but in fact they can be quite aggressive at times. Will nip the fins of other fish, especially bottom dwellers like plecos, loaches and birchers. In fact, some ray keepers even report witnessing majestic shelters attack their rays. However, they make good tankmates for monster fish because they are a good 'tank cleaner' eating up all leftover food scraps.