I used to feed Hikari sticks for my silver aro and all other fish in my tank but I want try something new and I bought New Life Spectrum fish food. Reason I bought it beacause it looked like it has more stuff in it. Aro & peacock bass didnt eat any of the New life spectrum and I dont have any Hikari sticks. Both didntabout 3 days, both rest of the fish did ate that food. Aro is about 40cm I am not sure in inches. Peacock Bass is about 30 cm. So Should I go back feeding Hikari or wait a week or 2 too see will It change it's mind?