I live in ohio and my buttikoferi is normally in a pond in the summer.but now it is cold so now it is in a 40 tall.I kno this is not a good tank size so i want to get it a 40 long till the summer comes.the thing is for filtration i want a magnum 350 pro,and then add a ac 200 on the tank also.would this be good filtration......for subtrate i want to use sand but i heard when u have sand it is always cloudy.Is it that bad that if a fish moves slightly the sand clouds the tank?