Here is what we see on the live feeds right now.
Ad you can see, the fish are swimming around in what looks like a happy fashion. None of them appear to be sluggish or near death. I don't see any fish laying on the gravel.
So in other words, the BB season is just beginning...
As you might guess, the BB music is blaring, too. In the old days, you could sometimes see the house guests moving around through the glass of the tank. So when the feeds were down for a competition or something, you could always count on some sharp-eyed viewer with advanced computer capabilities to announce what they saw to spoil the surprise.
You know, like James Rhine wearing the PoV necklace, or something along those lines.