Could be the regular green variety or 'Firesticks.' I believe (could be wrong), their orange/yellow appears in the winter. It's personal preference if you want to separate them. I like the multiple plants in one pot look, maybe you do/don't. It won't affect the health of the plant by leaving them in one pot.
If you do decide to repot, I would recommend giving it fast draining potting mix (I don't know what it's in currently). I use a mix of Miracle Gro Cactus and Succulent potting mix and rinsed perlite (a ratio of about 50/50). To ensure you don't have any issues with the roots, it's best to remove all old potting mix and give it the same "type" of mix throughout the entire pot. The soil it's in may not dry as fast as the mix I suggested, so just placing the rootball inside a new pot with the old mix "attached," you will have different mixes drying out at different times... That can create problems.
I had a ZZ Plant that I failed to remove the old mix from. I put it in fast draining mix. While the outside of the rootball was drying out faster, the inside of the rootball was slowly rotting from excessive water. The two types of mix were drying out at different rates. I lost it.
You might end up putting it back into the same pot if you do this, I've found once the old mix from these is removed, they don't have much of a root system going on and mine didn't end up needing a bigger pot. You may have to get some rocks to hold them down if you do this, until they anchor themselves, they can be a little top heavy and want to topple over.
Planto
