A system for rearing invertebrates, the system comprising a climate chamber and a plurality of crates arranged into at least two stacks, each crate in a stack defining an airflow path there through from an inlet opening in a first wall to an outlet opening in a second wall opposite the first wall, wherein said climate chamber comprises: an internal volume enclosed by walls, a floor, and a ceiling; a first row of air outlets extending in a first direction within the internal volume; a second row of air outlets extending parallel to the first row of air outlets within the internal volume; a row of air inlets extending parallel to the first and second rows of air outlets, and spaced apart from the first and second rows of air outlets in a second direction, perpendicular to the first direction; at least one first stack of crates arranged in a space between the first row of air outlets and the row of air inlets; at least one second stack of crates arranged in a space between the second row of air outlets and the row of air inlets; a conduit extending from each of the plurality of air inlets, said conduit comprising a plurality of conduit openings; wherein the crates are arranged with the airflow path oriented perpendicular to the first direction; characterised in that the row of air inlets are located between the first and second rows of air outlets, and wherein the conduit extends between the first and the second stack of crates, and wherein the plurality of conduit opening are configured to align with the inlet openings of the plurality of crates in each stack, and wherein the climate chamber further comprises at least two tracks extending in the first direction with the climate chamber, wherein each track of the at least two tracks comprises a first wall and a second wall, and a channel defined there between; and whereby each of the at least one first stack of crates and the at least one second stack of crates, optionally positioned on a pallet, rest on a corresponding track of the at least two tracks. an internal volume enclosed by walls, a floor, and a ceiling; a first row of air outlets extending in a first direction within the internal volume; a second row of air outlets extending parallel to the first row of air outlets within the internal volume; a row of air inlets extending parallel to the first and second rows of air outlets, and spaced apart from the first and second rows of air outlets in a second direction, perpendicular to the first direction; at least one first stack of crates arranged in a space between the first row of air outlets and the row of air inlets; at least one second stack of crates arranged in a space between the second row of air outlets and the row of air inlets; a conduit extending from each of the plurality of air inlets, said conduit comprising a plurality of conduit openings; wherein the crates are arranged with the airflow path oriented perpendicular to the first direction; characterised in that the row of air inlets are located between the first and second rows of air outlets, and wherein the conduit extends between the first and the second stack of crates, and wherein the plurality of conduit opening are configured to align with the inlet openings of the plurality of crates in each stack, and wherein the climate chamber further comprises at least two tracks extending in the first direction with the climate chamber, wherein each track of the at least two tracks comprises a first wall and a second wall, and a channel defined there between; and the row of air inlets are located between the first and second rows of air outlets, and wherein the conduit extends between the first and the second stack of crates, and wherein the plurality of conduit opening are configured to align with the inlet openings of the plurality of crates in each stack, and wherein the climate chamber further comprises at least two tracks extending in the first direction with the climate chamber, wherein each track of the at least two tracks comprises a first wall and a second wall, and a channel defined there between; and whereby each of the at least one first stack of crates and the at least one second stack of crates, optionally positioned on a pallet, rest on a corresponding track of the at least two tracks.