I recently acquired two masses of spotted salamander eggs that were salvaged before a nearby vernal pool was destroyed. The eggs are currently outside sitting in a plastic tub in about 5 gallons of water. I was wondering what the best temperature is for raising them. The current water temperature is about 60 degrees during the day and as low as 40 at night. Is this too much fluctuation? If I were to bring them inside, the water temperature would be consistently in the low 70s, but I'm worried about fungal growth. Also, how deep should the water be, and how long will they take to hatch at these temperatures? If you have any other tips I'd be grateful.