▁other ▁e pi phy te ▁plants , ▁together ▁with ▁well - a er ated ▁water ▁po ols . ▁Their ▁capt ive ▁habitat ▁should ▁have ▁a ▁light ▁cycle ▁with ▁ 1 1 – 1 2 ▁hours ▁of ▁day light ▁and ▁an ▁average ▁day ▁temperature ▁of ▁ 2 6 – 2 8   ° C ▁( and ▁night - time ▁aver ages ▁of ▁ 2 2 – 3 5   ° C ). ▁Sim ulating ▁a ▁ra iny ▁season ▁once ▁a ▁year ▁in ▁November ▁to ▁December ▁encourag es ▁reprodu ction . ▁ ▁Ph en ot yp ic ▁pl astic ity ▁ ▁Red - ey ed ▁tree f ro gs ' ▁emb ry os ▁exhib it ▁phen ot yp ic ▁pl astic ity , ▁h atch ing ▁early ▁in ▁response ▁to ▁disturb ance ▁to ▁protect ▁themselves . ▁Though ▁emb ry os ▁are ▁b red ▁synchron ously , ▁they ▁normally ▁h atch ▁after ▁ 6 ▁to ▁ 1 0 ▁days ▁from ▁ov ip osition ▁without ▁disturb ance . ▁However , ▁a ▁simultaneously ▁early ▁h atch ing ▁in ▁entire ▁cl ut ches ▁is ▁triggered ▁when ▁emb ry os ▁are ▁exposed ▁to ▁their ▁pred ators ▁or ▁threaten ing ▁environmental ▁changes ▁such ▁as ▁ra inst orm ▁and ▁flo od . ▁ ▁Pred ators ▁are ▁the ▁major ▁cause ▁of ▁this ▁response . ▁Since ▁these ▁fro gs ▁usually ▁lay ▁eggs ▁on ▁both ▁the ▁upper ▁and ▁the ▁unders ides ▁of ▁leaves ▁above ▁p onds , ▁cl ut ches ▁need ▁to ▁protect ▁themselves ▁against ▁ar b ore al , ▁aer ial ▁and ▁aqu atic