Since they have a back lateral system. Water movement is how they find their prey. It's their mode of "hearing" in a sense. But. With a filter and air pumps on. It's like a jackhammer. Which may stress them out. I fed rosies once. But that's because I ran out of frozen foods to feed at the moment and was in a bit of a rush. I guess i'll feed them every other day. lol. I just want them to be healthy and strong.