I'm doing the hypo treatment now myself for ich and am in the third week and all of the ich is gone already on the fish in QT but have to wait 2 to 3 weeks more to give the DT time. Hypo is the way to go and doesn't stress the fish because it's easier for them to breathe in the lower salinity thus using less energy. 1st off you're going to need a refractometer not a hydrometer because those darn things are just not accurate. Your goal is to get the water down to 1.009 but between 1.007 to 1.009 is good (mine is at 1.008 ), but it has to be done in increments. What I did was fill my QT with water from the DT and took some LR
and put it in with them along with a heater, light and a small HOB
filter I picked up for 30 bucks then every 12hrs you have to replace 20% of the water with treated RO
until you reach the target SG
. The SG
must be below 1.010 but not lower than 1.007. Once you get there you must keep up with the water tests because you will either experience a mini cycle Like I am or a full blown cycle which we all know is extremely stressful for the fish. I'm doing 50% PWC
every other day which is keeping the parameters in check. Once again don't attempt hypo without a refractometer.