I'm currently looking for something with a 6ft x 2.5ft x 2.5ft layout. Looking for a used tank within 200 miles of 37743. Assuming a find the tank for reasonable price. I need some suggestions on a killer filtration. Ehiem's, fluvals, whatever. Filters, powerheads, the works!What's the most killer bang for the buck. Looking at payara (vampire fish) or maybe a tigerfish. So current is a must and adjusting it would be even better. This tank will more than likely be used for one fish, clean tank. No substrate or nething. Maybe sand but doubt it. I just wanna see what I can do with a one of these predators. Altho a tigerfish is out of the question size wise in the long run unless there is a smaller species. So there's what I want. What it will be used for. Throw out the suggestions!! remember. BANG 4 THE BUCK!!