Ok another question lol

My prego girl is currently sharing her home and I don't have enough substrate for that one anyway. But I have a 7 gal. reptile tank I could use for tonight (just gotta kick out the salamander and give it a good cleaning, and yeah I could leave him in there, im sure this girl would love his company lol). Think thats big enough for now? The snake is around 20-24". I will get something else tomorrow if necessary but I want to get her on different substrate asap. This is a wc garter so Im not really sure when she will give birth but she is very fat so it could be tonight or it could be 2 weeks from now...

Ive been so busy with work I dont get much time but Ill make time tomorrow to find a better enclosure.....some how.