It sounds like you may have an algae bloom rather than a bacterial bloom.
Is the tank in direct sunlight? How long are you leaving the lights on daily?
Did you use new substrate? Did you wash the holey rock well or soak it before adding it?
Is the tank in direct sunlight? How long are you leaving the lights on daily?
Did you use new substrate? Did you wash the holey rock well or soak it before adding it?