This is my Malabaricus wolf fish that I previously owned I bought him for $60 over a year ago he was about 5-5 1/2 inches long when I got him ..
he grew to about 8 inches and I had to
Move some fish around so for a couple weeks I put him in a 40 gallon breeder, and I separated him and my arrowhead puffer fish by divider one day I went to clean the tank and was stirring up the gravel , I usually wear a thick rubber glove when cleaning the malabaricus’s tank but the one time i didn’t he got me good ! Gashed my finger wide open
I was too busy focused on what my puffer was doing and the one second I wasn’t looking I surely regretted it wasn’t my first monster fish bite but definitely was the most painful these things have literal razor blades for teeth 
Experienced or not make sure you guys pay attention and if ever bitten by these disinfectant with alchohol and peroxide I normally wouldn’t use peroxide on wounds but these super predatory fish are known to carry bacteria in their mouths similar to the armatus payara vampire tetra
