Self aligning wedge container with anti-evaporation tube

A fluid container comprising:

• a wedge shaped container body configured to hold one or more fluids, the container body comprising a rigid first container side wall and an opposing second container side wall;
• and
• one or more container alignment features comprising a flexible convex outer surface disposed on and extending outward from an outer surface of the first container side wall of the container body;
• wherein, when the fluid container is held in a compartment of a reagent server ring comprising a first compartment wall, an opposing second compartment wall, and a protrusion from the second compartment wall, the flexible convex outer surface applies a spring force to the first compartment wall and aligns the fluid container with the protrusion from the second compartment wall.

A fluid container comprising:

• a wedged shaped container body configured to hold one or more fluids, the container body comprising:
• (i) a container front wall;
• (ii) a container rear wall opposite the container front wall;
• (iii) a rigid first container side wall extending between the container front wall and the container rear wall;
• and (iv) a second container side wall opposing the first container side wall and extending between the container front wall and the container rear wall;
• one or more container alignment features comprising a flexible convex outer surface disposed on and extending outwardly from an outer surface of the first side wall of the container body;
• a first anti-evaporation tube alignment mechanism comprising a concave inner surface disposed on and extending inwardly from a first inner surface of the first container side wall;
• and
• a second anti-evaporation tube alignment mechanism comprising a concave inner surface disposed on and extending inwardly from a second inner surface of the second container side wall;
• wherein, when the fluid container is held in a compartment of a reagent server ring comprising a first compartment wall, an opposing second compartment wall, and a protrusion from the second compartment wall, the flexible convex outer surface applies a spring force to the first compartment wall and aligns the fluid container with the protrusion from the second compartment wall;
• and
• wherein the first and second anti-evaporation tube alignment mechanisms are configured to self-align an anti-evaporation tube within the container body along a length of the anti-evaporation tube.