I have some neon tetras and guppies in my tank. Originally i only had betta food, wardley shrimp pellets, and custom triop food(i also have triops in the tank). The fish didn’t respond to any except for the triop food (which are pellets made of 40%protein and 10%fat). I decided to switch the food to tropical flakes to increase diet variety, but they don’t even touch the flakes. I even tried crushing the flakes like i did with the triop pellets, but still received no response. It’s like their only looking for the triop food.
Have they become picky eaters? How can i make them transition between the two food types?