I am wondering what I can put in with my kels to keep the bottom clean? Especially while I'm trying to pellet train. I think they are about 5 inches. I current have bichirs that are about 4 inches. A Sengalus and a delhizi. I also have an endli but he is way too small. I know he will get eaten. Will the bass eat them? They theoretically would fit in their mouth from the diameter of their body but are almost as long as the bass. I also have a rtc x sn cat that is about 6-7 inches. I am afraid he would try to eat them. What do yall think I should do?