I wanted to make sure i am testing my calcium properly in my reef tank. I have an API test kit. I wanted to know if I only count the drops from solution bottle #2 to determine the calcium level?
Honestly I rather not have to use a chiller if I don't have to. And replacing bulb may not make sense if there is a fixture you don't have to. I am just looking for the best option for coral growth. I rather spend the money now.
New to the reef game. I have a 90 gallon FOWLR. What size sump would I have to run for it to be the most efficient? Can I also use two Aqua Clear 70 power heads for water flow for the corals??