Predatory scavnger

[Full3R]

I need a scavenger fish that will be able to eat dead and parts of mosquito fish as my barramundi has a tendancy to spit some of the mosquito fish back out any ideas?

[Full3R]

Short finned eels were my first idea as they are scavengers somewhat and they also grow quite large and wont be seen as food to the barramundi what do you's think?