Habitat - Indoor :: 150 gallon tank, add 2 more turtles?

[flashbang009]

Hey everyone.
I've got a 150 gallon tank with a 2 year old res and an 8 month old yellow belly. Its got a great filter and Mega ray lamp. Theres a log running the length of the tank for basking. I found 2x 4" yellow bellies at a pet store that someone had brought in that are in great health. Just wondering if it would be wise to add those two others.

Thanks

[blackforces get you]

how big are they?. over time, they will outgrow it and you will need to upgrade. the 10 gallon rule which says 10 gallons per inch on a turtle. a 2 year old and a 8 moth old turtle dont seem very big so that tank should sustain for a while.

[steve]

How big are they (SCL)?