hey there, i intially wanted to go with Discus in my amazon tank, but haven't had luck getting my pH to go from 7.5 to 7 and stay there, so i am done with messing with the pH, but i need to finish off my 75g amazon theme tank with a bigger fish. Like i said, my pH is 7.5 and the GH and KH are 8.... and 6. I have 2 pl*cos, 4 Julli Corys, 2 small green severums, 10 neons, and 4 silver dollars. Want a bigger fish now to finish it off, i know the severums will get big also. Trying to stay in the amazon theme, but seems everything will eat my other fish. Any suggestions would be awesome. Thanks DAN