I can't seem to find any Nutritional Information on Tilapia. If I do a search at http://www.nal.usda.gov/fnic/foodcomp/search/
Tilapia is not listed. I cannot find an article that compares this fish to any other kind of fish so I don't know what to substitute for it. I'm assuming the block size is relatively similar to most of the other fish. IE 1.5 ounces = 1 Protein block.
Does anyone have a link for TIlapia that would provide nutrional information or comparison to other fish?