gday everyone i just picked up a second rtc and to my joy it is within 3 cm of my first they are both aprox 45 cm and possibly a pair. 1 has much darker colouring and is more slender with rich red fins i have read this means male? and the new one is a grey colour with faded red finnage but is quite chunky in the upper body i have read this means female they are not fighting. they continuously rub each other and are really content they slept on each other last night!!! does anyone have further info on sexing and breeding the internet is useless (unless im looking wrong).