Paddy's Ocean - 70 Gallon Mixed Reef **Phoenix Rebuild**

[BlueTang<3]

The alk is low you can get away with it for a bit but too long you can have major tissue losses. Its not good to have large swings dosing and then checking a few hrs later and it was 120 so it was probably higher and fell. I see you are using h2 ocean salt i had the same problem with that salt. It was actually some of the worst salt i had ever used.