hi guys, i'm kinda new in polypterus care, currently i only have 1 endlicheri, live in 30x15x20 cm tank, with 3-5mm zeolite rubbles as the tank floor... i used to fed it with 1-2.5cm small fishes, and that endlicheri eats about 3 or 4 fishes everyday, i've been keeping that endlicheri for about 4 months, the first 3 months it just keep growing, but at the 4th month it stop growing and currently reaches only 15cm, is that normal...? also just today, s/he (idk if my endlicheri is a male or female) just eat a 5cm elongated mbuna, and start to roam the whole tank endlessly, i'm afraid that s/he might jump out of the tank, so i closed the tank... what should i do...? it seems that my endlicheri just can't stop roaming the whole tank and freaking out other fishes... -thanx in advance...