You don't know how to take care that's why. If they ignore the regular food you have to put live food like Comets, Shrimps, Brine shrimps, or bloodworm. I got 20 of african Arowanas and They loved Shrimps and Bloodworm. I loved to raise fishes. I been taking care almost 50 arowanas. Etc. Wild Silvers, Australian Jardinis, Yellow tail Jardinis, African arowanas, Black arowanas, and Royal Clown Knifes. I don'y really want to sell them because they r my babies.