so im thinking for a bottom clean up crew either a sting ray or maybe a rtc.... tank is 73x19x24 right now hoping by next year to have a 300g tank, i have 2 fx5's on my tank right now.... i know nothing about rays, and im curious are they ok to keep with other fish ? like peacock bass, silver arowana, and oscars, black ghost knife.... do they have the stingers all the time ? and will it sting other fish if so will they die, and do you just feed them reg sinking pellets ? anything they need specially ? like water conditons and etc ? which kind would you suggest ? i like the look of the black one with white dots....any help would be great
