Weather Loach - that plant you posted is not what this foreground plant is. The ones you see in front are dwarf chain swords who have been growing off the charts
Funny you mentioned that, because a lady my mom works for is giving away numerous free 5.5 gallons. I told her to get 2 and she did. I guess they will be put into good use!
That's great to hear! Just get a small sponge filter for it for when you have new fish. But you'll most likely have to do water changes everyday or everyother day if you don't have a cycled QT tank. The tank doesn't need to be cycled all the time since it's usually used for emergency.