it is said that blacks need cleaner water(more waterchanges) but I am unsure if it's true because I treat all my fish pretty good. Also The slowerg growth thing is bunk. My black is growing as fast or faster than my last 3 silvers.. they do however have a more slender body. Another thing, I'm not trying to tell you what to do just merely suggesting but I would get a silver first if you "plan" on getting a bigger setup and wait on the black until you GET the bigger setup. Why you ask? Blacks are pretty pricey and you should use that money to get the bigger setup first so that you don't have to put the aro through un-needed stress by moving him.. that way if the bigger setup falls through for some reason you don't have to get rid of a $300.00 fish.. Just my 2 cents
