Alright i have a full grown red zebra about 6" he is the dominant one in the tank eve tho i have a male frotosa about 9" big. I brought new fish home yesterday, rearrange the whole tank and pit yhe fish in. One fish is being pick on by the red zebra like continues to chave him all day. There r nit being close to b the similar species or color. Idk what to do i know aggression is going to be there but in2 days one fish is gonna die and is not going to be the zebra. Plx help i added ceramic cups and more plants to avoid chasing but nothing