Rainbow Shark Aggression
I have a rainbow shark in a tank with 4 mollies, 2 cory catfish, a guppy, and a dwarf gourami. The rainbow shark has been relatively passive, getting along great with the other fish. Today he is showing aggression only toward the mollies. Two changes in the tank...I added some more plants and I noticed some baby fry (only 2), assumingly from one of the mollies. Are the fry the reason he is aggressive all of a sudden? Thank you, I am new to the whole aquarium thing.