They are blue with black markings and yellow tails and fins. Unfortunately, these fish aren’t good for aquariums as they can’t be ethically obtained. They only breed in the wild, never in ...

Six critically endangered Mekong giant catfish — one of the largest and rarest freshwater fish in the world — were caught and ...

These are better known as Siamese Fighting fish, and while one may be hypnotic and mesmerising, they are tricky to keep and ...