Yea, makes sense to me, when the water was clear and they had the FHM I was dumping in for chow along with the BG, I suspect they ate well. Now, they are on a diet they never asked for

blundering around in that soup hoping to run head first into something they can eat....and not one of the turtles looking to eat them first!
I sure have to warn people that do fish in the pond to leave the turtles alone, they are all convinced that left alone, a handful of turtles will clean out a pond of all fish, including catfish many times their size, with little difficulty. When I explain to them I have studied reptiles turtles, frogs, etc all my life, since I was 4 in fact, and that it just is not so, they politely remark "well, things musta changed' or something like that. When I explain that I NEED the turtles I have to clean out the dead, old, and sick fish from the pond since I cannot be out there often enough to catch all that potential problems, they claim that the turtles are not interested in that, they want to eat ALL the fish.
So, I show them how the turtles just sit in the pond all day, sunning, waiting for the evening feeders to go off, and actually line up ( the larger turtles ) and occasionally hold their mouths open in the apparent hopes of catching some of the food on the fly. It is funny to watch. They are also great at eating the floating food that washes up on the edge to close for most fish to ever find or get, but the turtle keep if from going bad.
But geeze, what a show when we accidently get one of our snappers on the line. We are not content with cutting the line, that would leave the hook in its mouth, so the fight is on. Trying to get the hook out of a ticked off snapping turtle mouth may be one of my more exciting events in life. That and attempting to see how far I could drive while sleeping are all gonna stick with me for the rest of my life.