I know sly's story....what are you two going to do with them and what size tanks do you have?
Sly you tank is in pretty much the same stage mine is. Your cycle is done so you must have some nitrates in there. I doubt they are high enough to hurt anything yet. Its time for you to change some water now anyway. That will help.
You read my mind, and was exactly what I did last night when I setup the Feeder/Hospital tank (took 15g's from the 90g to fill up the F&H with).
Now - I'm going to do 15g changes every Sunday, and hopefully any Nitrates in there will be minimal. What is the affects of Nitrates? I know Ammonia is the worst, and Nitrites affect the Liver and Kidneys (if exposed for a long period of time), but what will Nitrates do to the fish? How long is too long for them to be around (assuming they are)?