Originally Posted by tonedogz
Well in a qt it would be 1.009 but you would need a refractometer to do hypo you can't do it with a regular hydrometer and you need to lower the salinity slowly,or you could use copper cupramine is very good and you'll need a copper test kit one that tests free or ionic copper and 8 weeks should be enough to kill of the ich in your display. Remove the fish from the display and you can keep the inverts in there. Just remember you can't do any of these treatments in the display tank.
1.009! My figure 8 is happy there! Yes I have a hydrometer, proper test equipment is on the cards but it is really expensive (not the refractometer they go for about £50)
not really worth it for a puffer fish (more hardy broad range happy)
probably yes for an expensive reef.
Yes salinity up/down I understand this, osmotic shock, filter bacteria etc.
(I got the display tank thing, corals inverts only, copper is bad for them)
It surprises me it's that low, that is the upper limit of a low end brackish system.
So temperature is no use? Just maintain T? Should I lower it? That would be my guess, freshwater fish seem to be assisted by lower T at medication time. O2
levels, growth rates/cycle times etc.
(Good heads up on the copper test