OK …. good on ya for taking these dragons in.
Can you
1) take photos of each of them so we can see how big they are and if they have any issues .
2) weigh each of them .
3) show how their tank is set up
4) subtrate ?
5) Lights setup review
5a) check the lights and tell us what lighting (if any) they have had …. VERY STRONGLY suggest ditching the existing UV globe or tube and replacing with 26W UVB200 (10%UVB) if using a compact UVB, or a T5HO 12% UVB in a reflector hood , and moving the UV source UNDER the lid.
This is because you do now know how old the UV source is. Best to start off with brand-new globes or tubes.
If a 26W UVB200, no more than 8" from the basking spot/s.
If a T5ho 12%UVB , about 12" from the basking spot/s.
5b) basking globe - what is it ?
basking spot temperature during the day
warm zone temperature during the day
cool zone temperature during the day
overnight tank temperature
see
viewtopic.php?f=34&t=235611
5c) how long are the lights on each day ?
I VERY STRONGLY suggest you house them separately starting right now.
If under 12 months old - (as soon as you can either set up a couple of modified 100L to 150L storage tubs (with clipon lids) , this is how I set my rearing tubs (100L) that I stack so the occupants only see each other when one is out of it's tub.
Will do temporarily to house an adult in each tank (go for 150L tubs) until you can build a plywood or Melamine (laminate covered MDF) tank for each, consider stacking the tanks on top each other - with the girl in the bottom tank.
Temporary tanks :
viewtopic.php?f=34&t=233480
Adults - they each need tanks at least 4ft x 2ft at least 18" tall.
I highly recommend sending the old tank (less the light fittings & hide and log) to the tip …. it's dangerous if glass and cracked (to everyone including you, your kids, your visitors and the reptiles living inside it) .
I'd suggest putting the two dragons into tubs (see above) , taping the glass sheets with cloth tape then and then breaking the old glass tank up and wrapping in the broken sheets of glass in an old bedsheet before sending to the tip.
food
Insects : number of times per day depends on how old they are. Choose from
BSFL
Silkworms
crickets
roaches
locusts
I give my adults 1 small feed of live insects (crickets + silkworms) per day + offer salad,
refer to
viewtopic.php?f=76&t=234999&p=1807834#p1807834
veg : choose from
http://www.beautifuldragons.com/Nutrition.html
Adults , this is the best guide I've seen :
viewtopic.php?f=18&t=236074
Crash course on
bearded dragon care - detailed , highly recommend this book Philippe de Vosjoli's The Bearded Dragon Manual
https://www.worldofbooks.com/en-au/books/philippe-de-vosjoli/the-bearded-dragon-manual-herpetocultural-library/GOR001546764?gclid=EAIaIQobChMI5_P8s_vu3QIVAWoqCh01HA4HEAQYAyABEgJUPvD_BwE
and A Guide to Australian Dragons in Captivity by-Dr.Danny Brown
https://www.dymocks.com.au/book/a-guide-to-australian-dragons-in-captivity-by-danny-brown-9780975820056/?utm_source=googleps&gclid=EAIaIQobChMI5_P8s_vu3QIVAWoqCh01HA4HEAQYESABEgK2LvD_BwE#.W7csJjFReHs
and Bearded Dragon Manual
https://www.google.com.au/search?q=bearded+dragon+manual+book&source=univ&tbm=shop&tbo=u&sa=X&ved=0ahUKEwjN3PSz--7dAhWKU7wKHfCgBkkQ1TUIlwE&biw=1579&bih=973#spd=7527879604829698717&spf=1538731083300
If she's laying a clutch of eggs she will need extra dietary calcium and protein.
Others will advise on how to deal with the eggs depending on if you want to hatch them.