One day our mailman delivered us a mail and he suddenly noticed my tank "Is that a snakehead?" he asked..I said "yes" "how did you know? do you also have an aquarium?"..."no" he replied... "its because I have a friend who sells an adult one not far from your village"...and I immediately get the address of that snakehead owner and went to it...As I take a peek at thier garage ive seen it already! god its very huge! its like 3 feet! ...So excitedly I rang the door bell and the owner came out...he said yes he is selling the two adult snakeheads for $100 including the 100 gallon tank..the tank is measured 72x18x18 inches ,,,no pumps no substrate just the fish and the tank...He said 3 years ago it is just in a 50 gallon until it busted the tank and had to buy a 100 gallon tank..now the snakes are 5 years old and never again busted the 100 gallon tank of only 0.25 inched thick glass.."before its has a pacu at a size of a dinner plate as tank mate" he said..."until one day I woke up and the big pacu was eaten".....he said it also always break's his tank lid till he planned to cover it with a screen...he just feed it with mosquito fish...ill be posting its picks when we return there...my friend is deciding to buy it