The idea was put on hold. My reason for doing it is no more, but it would still be cool to try.
At the time I didn't want to give my reason away, but you see, I had this poor hatchling turtle. The little turtle could not see very well, only one limb worked and it wasn't feeding well or swimming. So, I was thinking of making a shallow tank for him/her with fish/shrimp/snails that could become an extra food source if they happened to stumble infront of the little turtle. They baby turtle didn't make it however, so now I don't have a use for such a shallow tank.
However the idea is still rather interesting and it would be fun to attempt someday. If any of you go for it, let me know!