my water is 5 1/2 inches deep and my frogs are in an all aquatic tank with sticks "that are only used by the crickets" and a fake seeweed plant, i have a filter that cleans the water and then spills it out in a waterfall way on the side of the tank and the water comes down the glass and goes into the water that the frogs are always in. my mossie frogs are active at all times of the day croaking all the time. sometimes when i change the water they mount the only unsexed mossie i have, so i think it may be a female but it is not bigger than the others and i have still never seen any eggs, i think this may be because of temperature though because after a year and a half of research i am yet to find an exact temp for mossies so what is your temp when they layd the eggs.