especially with that bioload and small amount of live rock. What are her levels testing at? Jess, the best way to treat ich is a UV sterilizer. Yes, just like the one you sold me! If it's fowlr, drop the salinity to 1.015, and leave it there. Most LFS do this because they have a large influx of fish, and the low salinity kills most of the parasites in the water. Make sure the change to low salinity is done fast. When you're ready to bring the salinity back up, DO IT SLOW! I recommend a dripper bucket.