im planning on getting a 5 inch motoro ray this week. i want to keep it in my 100 gal temporarly for maybe couple of months till it gets bigger. but i have a lot of fishes in there. theres 3 bala sharks 3 pulchers tanganikyan perch atf 2 silver aros bichir chinese perch and tire track eel. these are all small all aroudn 4 inches. just wondering if i coudl keep the ray in there