Apparently they get to about 6 inches, ive seen one in the fish store near me and they were huge. One of them is really dominating and getting big now.
I have changed their feed from bloodworms to live food such as large crickets and crab meat, also snails which i have plenty of.
Its pretty important to keep the water changes up due to their messy eating habbits. when i feed them mealworm they sift the guts out of their gills and only eat the exoskeleton, which causes a hell of a mess.
Thanks grandad!
