Gary Majchrzak
Team RC
usually Reef Crystals and/or Instant Ocean but sometimes Oceanic and/or Coralife. I've tried a slew of others.That's what I am using to boost alk now. Other than that I have been happy with Coralife. What brand do you use Gary?
The only brand that I have nothing good to say about and will NEVER use again is Crystal Seas (do a search on it if you have any questions).