I am looking to start using some Coral foods. Currently my system is 100 gallons total water volume. I have quite a few sips frags and small colonies. I am struggling keeping my po4 and No3 readable. I add acropower 1 or 2 times a week. I'd like to start feeding the coral either Red sea ab or Pohls coral vitalizer. Are these the same? Should I get both and alternate? Is one better than the other? I already use red sea colors 5ml once per week.

