sorry its 2.5 metres squared .not 2.3 newest set up .....addition to my family new babies cracked too and are gettn readyin the clone box for outdoors also .....had i think like anywhere from 18\20 ish in there half have cracked ....tho lost sum clones due to the fact that the plant i cloned from was a friends and it had bn gassed ...so i really only cloned the healthy looking parts lost 1\4th but the rest look dard and already look like sum are rooting ....so ....at least i saved my bizo partners\best mates hide n strain .....b 6th gen this tym ..