She is replacing the UVB today, and she has 2 75W bulbs, in one tank...Will two not work??She also has a hammock in one and a big rock in the otherWhat is in the tank, the pic looks very fuzzy. They need some small, slim branches to climb up by the uvb. A 75 watt bulb in the small dome fixture is almost certainly not going to give off enough heat and the coil/compact bulb can't project enough uvb for a group of babies. How many babies are there ?