OK, that's cleared up lets try again.
As I said Severum do require vegitable matter in their diet and veggie flakes will serve that pupose. You could also feed them frozen Sprulina Brine shrimp, Blood worms & a good quality flake food like Omega One. Mine like Cichlid Bio-Gold mini pellets as a daily staple and I change up the above mentioned foods every day to give them veriaty. There is also alot of onfo on the internet about Severum. The peas are given onec or twice aweek (3 or 4 each) it gives them a good cleaning out too.
What kind of Severum do you have? What size are they? What size tank are they in? I have 3 female Rotkiels & a male Terquoise all about 6" +/- 1/2" in a 90gal. the boss is the biggest female.