New system, and I don't know if it will work

I have a Victron Energy SmartSolar MPPT Tr 250|60

Quattro 48V, 5000VA and 70A Inverter
And a Victron Color Control GX as well.

I want to know if I can use batteries of this type with this system, or if I need to buy something else.

Pytes batteries are on Victron’s supported 3rd party battery list, so yes they work. The CCGX has reached end of life and you won’t be able to update VenusOS beyond 3.55 I think. You might consider updating the CCGX to a Cerbo GX or Ekrano GX. The batteries will likely be ok with the CCGX but I haven’t tested that.