Cheap fish food

Dear sir,
Good article about cheap fish food. I am delighted to read about this discovery. It is of particular interest to me in four ways:
1: I am a catfish farmer and consultant to many other farmers in Nigeria where high cost of feeding has dealt heavy losses to farmers and consequential quitting from catfish farming by many farmers in my locality.
2: I have been working on a similar project with waste product of maize in maize starch (pap) production. I have almost abandoned the project due to lack of fund, but with this discovery I am encouraged.
3: Nigerian fish farmers have been looking for a bail out route from the high cost of feeding their stock.
4: However I would like to know the health implications on the fish fed with the newly discovered cheap food.
I once more express my delight with this discovery, and suggest further research or information on the long term health benefits/defects.
Thanks.

Dr Igwe U Eddy