I wanted to get carida shrimp but wanted to add them to the tank that is already established is that possible. It is a no heater tank so am like mid to high 60 and I don't know tds or pH is. There is botanicals so I would guess like 6.8-7 because my water is very alkaline out the tap. It is very bio diverse with tons of different worms and microfana(see second picture). Are there any species that are easiest to care for but still are buetiful to live with cherry shrimp? Thanks so much