A system for rearing invertebrates, the system comprising: a plurality of crates arranged into at least one stack , each crate in the 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; a climate chamber comprising: an internal volume enclosed by walls , a floor, and a ceiling ; a first row of a plurality of air outlets extending in a first direction within the internal volume; a first row of a plurality of air inlets located next to the first row of air outlets , and extending parallel thereto, and spaced apart from the first row of air outlets in a second direction (2 nd ), 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 first row of air inlets ; a conduit extending from each of the plurality of air inlets along the first stack of crates , said conduit comprising a plurality of conduit openings configured to align with inlet openings of the plurality of crates in the stack ; wherein the crates are arranged with the airflow path oriented perpendicular to the first direction , wherein the plurality of air outlets are arranged along a duct and covered by the duct , and wherein the duct is configured to draw air from the climate chamber through the plurality of air outlets via a master outlet in fluid communication with the duct , characterized in that the air inlets and the air outlets are provided in the ceiling of the climate chamber . a plurality of crates arranged into at least one stack , each crate in the 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; a climate chamber comprising: an internal volume enclosed by walls , a floor, and a ceiling ; a first row of a plurality of air outlets extending in a first direction within the internal volume; a first row of a plurality of air inlets located next to the first row of air outlets , and extending parallel thereto, and spaced apart from the first row of air outlets in a second direction (2 nd ), 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 first row of air inlets ; a conduit extending from each of the plurality of air inlets along the first stack of crates , said conduit comprising a plurality of conduit openings configured to align with inlet openings of the plurality of crates in the stack ; an internal volume enclosed by walls , a floor, and a ceiling ; a first row of a plurality of air outlets extending in a first direction within the internal volume; a first row of a plurality of air inlets located next to the first row of air outlets , and extending parallel thereto, and spaced apart from the first row of air outlets in a second direction (2 nd ), 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 first row of air inlets ; a conduit extending from each of the plurality of air inlets along the first stack of crates , said conduit comprising a plurality of conduit openings configured to align with inlet openings of the plurality of crates in the stack ; wherein the crates are arranged with the airflow path oriented perpendicular to the first direction , wherein the plurality of air outlets are arranged along a duct and covered by the duct , and wherein the duct is configured to draw air from the climate chamber through the plurality of air outlets via a master outlet in fluid communication with the duct , characterized in that the air inlets and the air outlets are provided in the ceiling of the climate chamber . <EOS>