+1 ,,its all part of the processAny new saltwater tank will go through a diatom phase. They'll normally die back as the tank matures.
Rutrag said:Any new saltwater tank will go through a diatom phase. They'll normally die back as the tank matures.
Also- did anything happen to the tank to cause a mini cycle? This could also of caused the diatom bloom.
Your bulbs may be reaching the end of their life- just make sure to switch them out one at a time so if you have corals they can adjust to the new lighting