Growing bigger, time for another tank. My Zebrina pikes are 15 and 12 inches, distichodus atroventralis is 10 inches, azul bass are 9 and 10 inches, flagtail prochilodus is 10 inches, gold clown knife is 14 inches and the fire eel is 19 inches. I do two big water changes a week on this tank to keep everything where it needs to be.