Giant Red Snakehead - Channa micropeltes
I owned a Red Snakehead named Otto. When I bought him, he was 10 cm and was told he would grow to 30 cm. When I introduced him into a 340 L tank, with a Red Devil and 2 large Oscars, all was fine. I feed goldfish to my larger fish and guppies to my Snakehead. After a couple of weeks Otto was eating the goldfish and had grown to almost 30 cm. I would buy 100 5 cm goldfish for my larger fish to eat each week. Once Otto started eating goldfish they were gone in one day. I was up to 200 a week when I came home from work to find my Red Devil gone, one Oscar (35 cm) ripped in two pieces and the other cowering in a corner of the tank. I temporarily put my Oscar in a friend's tank and let Otto live alone. Otto was 50 cm long, eating 300 gold fish a week at a cost of $7.00 a hundred. I found a bait shop that sold 20 cm goldfish for $1.00 each and Otto only ate 5 a week. Otto was very aggressive and had a lively personality. He had beautiful colors (black and gray with red and white stripes). I had Otto for about 3 years...when I was gone for a weekend he busted the top off my tank and hit the floor. I found him still alive and placed him back in the tank, but the next morning he was gone. He was almost 75 cm when he died and weighted about 1.5 kg.
Snakeheads are one of my favourite fishes. They are easy to maintain, but their size and fish-eating habit makes them not suitable for every aquarium. There are smaller species than the one here, but they are not always easy to find. But in a good-sized aquarium you will be amazed by them. Feed them with worms, fish, crickets or other similar foods, and they´ll be fine. Live fish can be an exciting food, both for you and the fish. I "trained" mine to jump and catch food about 10 cm over the surface, which was quite cool. It's a great (in two meanings) fish!
Well the snakehead fish...a pretty amusing fish it is. I have a friend who owns an aquarium shop here in Toronto, Canada. He had one which was like the store's mascot (not for sale). He had it in a large 800 liter tank. Now...this snakehead would eat mice (EWWW) and loved it. It also ate a lot of feeder goldfish, guppies, and crickets. These fish are really fun to watch, but I suggest if anyone is thinking of purchasing one to have a fairly large tank (min 800 liters) as they grown pretty large. No tank mates are required. This beauty is fine alone. They often go to the glass of the tank when someone is standing in front and looks like it's trying to kiss you. A real heart taker this fish is.
A snakehead recently appeared in a local petshop. Apparently the former owner brought it in after outgrowing it's old tank. Right now I would estimate him around 90 cm. He is an interesting and monstrous fish. Even more ominous is the "do not taunt me, I will break the glass" sign posted on his tank. Additionally, reports started arriving that this fish has been introduced to Florida. It has been terrorizing native fish populations and rapidly expanding its territory by "walking" on it's strange fins from lake to lake. Needless to say, if you like exotic and mennacing fish, this may be the one for you.
Snakeheads are found in slightly muddy stagnant/moving waters. They are predatory fish and also very aggressive. They will eat anything that fits into their mouths. They grow really large in nature, exceeding 90 cm. Not fit for the aquarium unless you have very big fish like Oscars, Tinfoil Barbs, Knife Fishes, etc.
This fish can really grow! And it won't take anything other than live food. Can be fairly expensive to feed after a while. Watch your fingers once they reach 20 cm in length. Also, my snakehead is not fussy about water and has even survived without it for 3 days.