Artificial lighting should be attached to a time switch to ensure a 'natural' dawn and dusk, which is important for mating of most species. Thus, lights should turn on about one hour after dawn and turn off one hour before dusk. B. kirki in Tonga, however, responds better to longer days and very strong lighting. The internal area must have large benches that are ant-proof, which is usually achieved by placing water or oil traps under the bench legs. The whole area must be completely free of pesticide contamination or spray drift at all times.
Some countries require heating in winter to maintain an optimum temperature range.