Instant Ocean
Because it is inexpensive and has high alkalinity but low Magnesium and Calcium.
I add a Magnesium Chloride and Magnesium Sulfate mix to bring the Magnesium up to (1300 - 1400).
I also add Calcium Chloride to bring the Calcium up to (400 - 450).
Lately I have been doing water changes of 60G on a 525G system once every 6 weeks.
Tom R
|