Guys - I'm struggling here. I have an empty 180gal which I want to put big active fish in. I have medium to hard water and a PH of ~7.5 out of the tap. I had originally planned on a couple of oscars and then maybe some SDs and a bichir. Now I'm reading a bunch of threads on HITH and it's just not something I want to deal with. Is HITH rarer than it appears ojn forums? Or else is there a biggish fish that would make a good alternative to an oscar pair in a 6ft tank?






