Please keep in mind redsea that hypo-salinity treatment will kill off your beneficial bacteria in your live rock as well
and its been well noted that ph instability becomes an issue when one tries to drop the salinity. I too am going through this on my 125 and I've learned one rule when it comes to ich. . . There is no quick, convenient way to treat it completely
as long as your fish are in good health and still eating, take your time and truly research each treatment option and make your own decision. Also remember that you need to stuck with whatever decision you make, or else the treatment wont work.I personally recommend hypo and/or garlic treatment. Ultimately, ich is a parasite, it needs a host in order to survive. Fresh garlic is said to actually mask a fishes chemical factors that ich picks up on, therefor taking away its host options and killing it off..