Was looking at some of the shrimp bowls you guys have I would say wow they all look great now I want to do one. I thought shrimp had to have pristine water conditions. Do you have to have filteration? Do you have to have a heater? Would be planted with some of the plants from my 46. Any advice would be helpful about what kind of equipement you need and so forth. Another question would you be able to combine shrimp and fiddler crabs? I really like both and do not have the room or the money to set up two different ecosystems.