Im new to flowerhorns but id say that it might only work for a few days to maybe a week. As i said im new to flowerhorns and i decided to make a tank. i bought a 450litre tank and found this flowerhorn at the same shop(current size 7-9 cm). Can you tell me if this flowerhorn is a good grade or a low grade flowerhorn and if i decide to buy it can i put an electric blue jack dempsey of similiar size with the flowerhorn.