I'm completely captivated by the Electric Blue Jack Dempsey. Do they go ok with Bichir? Also, would a Bichir and a EBJD fit well in a 75 gallon tank? The Bichir will be either Senegal or Delhezi. Also, all the pictures I've seen of the EBJD are BRIGHT blue, do they retain this coloration into adulthood? Or does it fade?