From the frozen food isle!
My poor communication skills coming to light. I didn't like talpia from the frozen food isle because of the texture. I over cook salmon for most peoples taste but not to point of being dry and even will throw a smoked salmon filet on the grill - top with butter and brown sugar before and it is (i hate to say it) almost like bacon.
You "flush" your fish
Is that because they are swimming around in the toilet all day every day? Seriously though, why or are tilapia unique in this way? I can see getting their stomachs empty (not like wild caught where that's the bait), but wouldn't they eat any biology in the tank? or is there nothing and the picastiamus (think thats what I saw in a previous pic) keeps anything from developing?