So, I moved up from a 55 gallon to a 150 gallonthis summer. Tobie has loved the space, and I've loved watching her.
She's had black neon tetras in the tank with her and let them alone since she started in a not completely cycled 20 gallon over four years ago. I had tried some neon tetras years ago in the 55 gallon along with the black neons. Those lasted fine for a few weeks, then started to disappear each night.
So, with the 150 gallon, I figured I had more space and wanted to try more fish. I bumped the three black neons up to nine and added some zebra danios, black mollies and more neon tetras. Only the neons were a mistake. They started disappearing again and stabilized at just three.
However, Tobie has left everyone else alone. It's amazing. When Tobie gets fed, the zebras go for the turtle sticks. Tobie will actually avoid going for one if there is a fish there. The fish steer clear of Tobie when she is on the move, but aren't actively scared. They'll even swim right in front of her when she's resting.
I have no idea if I just have a very passive turtle, or if growing up with fish since she was small means they aren't prey. If there's a shrimp in the tank, she's definitely on the prowl.
