my iridescent shark will not eat fish but will eat pellets btw i put him in a poond but he wont swim and will just be in the corner and it scratched itself on the face (the pond is made of cement)
What size is the shark, and the pond? For how long have you had it? What is the temperature, and have you tested pH, KH, ammonia, nitrite and nitrate ?
the shark is about 4 imches the pond is pretty big and deep ive had the shark for2 weeks now the pond is green and it is pretty cold no i have not tested it yet but my goldfish is fine in the pond sorry for lack of information .