logan15
Active Member
Ok while I was at my first day of work yesterday I was really studying our 120 Gallon reef where we sell our corals and so on and ever since one of the most knowledgeable people got switched to another location the reef tank has slower not been as nice. Im going to ask if I can take care of the tank. Now my question is would old MH bulbs cause some corals to bleach from the lost of spectrum? The corals still look nice somewhat but some dont. Any help on what I should do? Im going to work today so I'm going to ask them how old the bulbs are.