Hi Viktor, No I did see this one too but didnt want to comment as i think its an ugly looking fish! Just doesn't sit well with me. Then again who am I to judge what is a good looking Hybrid & what isnt?? It totally unerstand & can agree with Hybridization of fish for food/consumer purposes but feel uncomfortable with Hybridization just for Aquarists benefit. Again being Hypocrytical here as I own a Large RTC x TSN cross which Im very fond of.
Yeah, it has a Frankenstein look to some one who has seen many TSNs and Doradidae and paid attention. As you saw, it has plenty of admirers too I've never seen any even on photos apart from that baby in Cat-eLog. So, I thought of pointing it out as something rare.
Remember, they are made by triggering males and females of the parent species with injected hormones. Sometimes the fish require multiple injections, made from pituaries from other fishes.
After a certain period, the eggs and sperm is taken from the parents, which in many occasions don't survive the procedure and then both samples are mixed.
The thusly fertilized eggs are hatched, and the resulting fry is raised
Nothing very exciting, or high tech. Somebody who is generally good with fishes could learn it all in a week.
The advantage of hybrids is, they don't reproduce. This results in no energy wasted on fighting to mate, and eventual escapees will not influence the natural stock too much
Further, hybrids tend to grow bigger than the parents, which is for food fish also an advantage
But for keeping them in a tank? This is a disadvantage. A 60 cm (2 feet) fish is generally far too big for a private tank. I got a 4 meter * 1 meter (that is over 13 feet * 3 feet) tank in my livingroom, and I would include this - many would say monstertank - in the definition of a normal private tank
One would need a swimming pool for them.
I think we better stick to fishes not much bigger than a foot and a half. max