Congrats on the beardies! They look adorable. I remember when Tampico was that young. Time flies and they grow so fast. Sometimes I miss her at that age!
I second removing one of them and keeping each in a separate tank. They're so young, it is hard to tell if they are male and or female, so you good potentially have two males and not know it yet. As far as the tank setup, a light at night is not necessary for them. It can disrupt their sleep and if you want it more for warmth because your house drops below 65 degrees at night or the humidity in the tank goes up at night, I suggest buying a ceramic heat emitter. This gives off heat, but no light. Since they are diurnal creatures, they will most likely fall asleep when it gets dark, just like us. As far as the rest of the lighting goes, I will give my opinion on how I setup my tank and advice I've gotten from other beardie owners and the reptile store I bought my beardie from. I believe that you need to separate lights that are on during the day. One light that is strictly
UVB light,like the florescent tube lights. A lot of people recommend the T5 HO ReptiSun 10.0 UVB to mimic the benefits of natural sunlight. The basking bulbs mostly give off heat that they absorb through the top of the bodies and a heating pad is not needed (I cannot recall if you said you had one). But I would keep the basking light at one end of the tank and the UV tube light that kinda overlaps the basking light so they are getting the best of both worlds, then when they've had enough basking light, they can migrate to the cooler end of the tank. Because most of the tank would be lit up, putting small things for them to hide in is always nice. They don't ALWAYS want or need to be in both lights all the time, at least that's what I've learned from my beardie. I had a 55 gallon tank for her and this is the best pic of the first set up I had for her. Hammock under the basking light and then the rest of the tank had the tube
UVB light towards the back.
This was the way her tank was setup when she was older and before I moved her to her bigger tank. But still the same type of setup.
And currently. The setup is still the same.
This is all my opinion and I've only had mine for almost a year, but I've learned a lot from her and have done my own research and have talked to a beardie owners at the reptile stores, in public, and also have read tons of beardie responses in this forum as well. Your beardies look like they love their new mama/papa and new home, so you're doing something right!!!