Have a tank on the way for them!
Petco has a 20% off sale going on right now, and I had 10 dollars in rewards available....In addition to the tank being on sale already from 209 dollars, I am getting it for 150 after shipping!

It's not biggest I would have liked to get, but it's a 24Lx18Wx24T. The biggest we can buy at this time. But, will be a huge upgrade from the 10 gal they are in currently.