ML :

Are you sure you want to tinker with the expir. while it is in progress. I have no idea if it would comprise the test or not. How long has it been since any of those fish have seen a pellet? The longer the time the less chance any of the fish will give a feeding reaction to the pellets.

If you do throw in some pellets this is what I guess you will see. No reaction -- the pellets will sit there and sink and become part of the bottom silt. Maybe a tilapia will eat a few off the bottom. If you do get a reaction from the BG or tilapia and they stop in open water to feed on the surface and the bass are in an active phase { no low o2 or real high heat etc.} , based on your prior comments about those F1 bass , you will have served them a fish lunch. ewest

ps : I suggest you wait until you get the mail to at least get a better insight on some of your questions.