i know bgk's dont get along with each other but will they get along with other knifes like centipedes? they would be in a 75 together. and if anyone can give me info on the care of centipedes i will greatly appreciate that. a lfs of mine has had some for some time now and i really want to pick a few up. iv heard they need to be in big schools, is that true? also, how big do they get? will a standard 75 gallon be ok for life?