I have a 20 Gallon freshwater tank with 5 male platy's and one Sunset fire Gourami (just added it today also). I also decided to get 2 ghost shrimp, I walked past their tank at Petsmart and they were SOO cute.. so I just had to get some.. hehe. My fish are leaving them alone and none of mine are aggressive thankfully. I read on here that the ghost shrimp help keep the tank clean by eating old food etc, but I am assuming I need to feed them something else. I have Tetra flakes (which is what I feed my fish, and my fish eat bloodworms too about once a week, can my shrimp eat those? They are so darn cute.. I love how their little legs move, hehe!