In fact, Randy in his article indicated that 7.8 to 8.2 is an acceptable rang but as you approach the lower in of that scale it is even more important to maintain alk and Ca at optimal levels. Not an expert on chemistry by any means but what I took from the article is that with lower pH, coral skeletons can actually start to decay from the acide making calcium and alk concentration that much more important to corals and their ability to graow/maintain their skeletons.
Yes there is always ammonia being converted but the amount of ammonia resulting from fedding and coral/fish waste is far less than an entire table shrimp decating in the tank. If you don;t have much alage for the CUC to eat you can just feed the pellets, etc.
pH will definitely vary throughout the light cycle but even more so when photosynthtic life is present. This is why people run refugiums on reverse light cycles to stabalize pH throughout the day.
Yes there is always ammonia being converted but the amount of ammonia resulting from fedding and coral/fish waste is far less than an entire table shrimp decating in the tank. If you don;t have much alage for the CUC to eat you can just feed the pellets, etc.
pH will definitely vary throughout the light cycle but even more so when photosynthtic life is present. This is why people run refugiums on reverse light cycles to stabalize pH throughout the day.