I have a pearl arrowana abt 16cm who suddenly stop eating . At the same time I change the fishtank into 4ft tank n bought a Banjar red abt 20 cm long n mix together the two arrowanas. The pearl stil refuse to eat n it is already abt 2 weeks. I also realize that the pearl scale keep dropping off n it seem both of the are might be fighting each other n the fins of the pearl are have also been damage. Is it ok to leave them in the same tank or should I transfer the Earl to another tank. Pls advise. Thanks