I have a little story to add...
We had 2 snake heads, I can't remember what kind they were, but they had a red stripe on them. We got them because we thought they were a cool fish...kind of jumped on the band wagon! lol So anyway, they were getting big fast, and we decided to get rid of them...They were about 10". I had gotten some fish bags from my lfs and thougt, this will be really easy....We were in for a BIG supprise! I netted the first one and put it in the bag, it immediatly attacked the side of the bag, clamped on to it, and did an alligator death roll...lol...it tore a huge hole in the side of the bag! I could not believe it and I was laughing so hard, I did not notice it jumping out of the tank to attack my boyfriend! He jumped back and we through a towel on it, picked it up and through it back into the tank...WOW what an experiance! We put them into a 5 gal bucket, and took the back to the store. I never wanted another snake head again!