I have had my 135g for about 4 months now, the first fish i added where 2 clowns and a royal gramma, this month i have added a niger triger and a naso tang. Everything has been fine except the last two days the trigger has been really aggresive towards my clowns chasing them around, also my emarld crabs have turned nocturnal only coming out at night.
Is there a solution for this
Is there a solution for this