Thanks to those people who have offered advice.
I have a variety of african cichlids - electric yellows, demasoni, kenyi, peacocks, fryeri, kandango, and blue dolphins
I will try the frozen vege idea - I have not done that.
Thanks heaps - and I look forward to anyone else contributing ideas. My local fish man is not super knowledgable about cichlids so it is great to get some expert views.