the senegal would not eat a pıctus. they ınstınctıvely know not to eat thıngs lıke catfısh that have fıns they can jam ınto place.
my senegal ıs about 10" and has "1 coreys wıth ıt that ıt dosnt touch... ıt eaten 2" tetras but never touches the coreys. and the actıveness would be fıne. ıd bet good money on the 2 workıng