At present my proteus dwarf pike is in a 88 lt grow out tank at approximately 3 inches I will soon have a 4ft 240 lt tank available so was thinking of putting the pike in there what tank mates could go in there with the pike if any.
Any of the medium sized SA cichlids would work. Given the small size of the 240 liter, stick with fish that stay under 6”. Guinacara would work, as would a pair of heros rotkiel. Whatever you decide, stick with just a few given the limited space.