im setting up my 55 gallon tank again i had two oscars in it and now im ready to start my tank up again and i went to the pet store today and fell in love with the peacocks their colors are so amazing........ so i was wondering what do i need for my tank. do you prefer sand, gravel, or crushed coral... and what color brings out their colors more.... what kind of decorations should i have in there plz help thank you