:slfg:
Forget the rest of the questions. I've done some heavy reading and food most answers I need.
Just a note, I found that snails can be an immediate host for flukes. So they can pose a risk to turtles, unsure about loaches though.
I'm looking at getting a new light fixture. Another 4' double. So in reality it's like having 2 8' bulbs on a 6' tank. Is this overkill for a turtle tank?