I used kick-ick and it works, did not stress and coral. sps/lps and softies. just do what it said to ,. here the directions on the use of it.
Beginning on Day 1 add 2.0oz of Kick-Ich for each 25gal of total water volume for the entire aquarium + filter system(s). Repeat on days 4, 7, 10 & 13 whether or not spots continue to be visible (For heavy infections repeat on days 3, 5, 7, 10 & 13). Persistent infections may require repeating the cycle.
Do not use carbon or similar absorbent media during treatment (phosphate absorbents are OK). Protein Skimmers can appreciably reduce effectiveness of the treatment. Safe for all fish (including scaleless fish), plants, corals and invertebrates. Will not affect biofiltration
By day 13 my ick was gone. polpys on sps was out and no stress to any of my corals through treatment.hope this helps you.and EBAY has it in stock 2 weekends ago.